diff --git a/docs/book/exceptions.md b/docs/book/exceptions.md
index 7f6bae3b..97c93357 100644
--- a/docs/book/exceptions.md
+++ b/docs/book/exceptions.md
@@ -64,6 +64,14 @@ a named constructor cannot:
 
 Everything else is a named constructor on the component's SPL-shaped class.
 
+### The one exception to the rule
+
+`PhpDb\Container\AdapterInterfaceDelegator` renders a template at the throw site rather than
+calling a named constructor. The ServiceManager decides the type it must throw, and Laminas
+annotates `ServiceNotFoundException` `@final`, so this package cannot own the class. It owns
+the wording instead, as `PhpDb\Exception\ContainerException::MISSING_SERVICE`. Anywhere the
+thrown type is ours, the rule above applies without exception.
+
 ## Component namespaces
 
 There is exactly one marker interface, `PhpDb\Exception\ExceptionInterface`, and every
diff --git a/src/Container/AbstractAdapterInterfaceFactory.php b/src/Container/AbstractAdapterInterfaceFactory.php
index 64018557..b596b025 100644
--- a/src/Container/AbstractAdapterInterfaceFactory.php
+++ b/src/Container/AbstractAdapterInterfaceFactory.php
@@ -88,11 +88,7 @@ public function __invoke(
         $driverClass = $this->config[$requestedName]['driver'] ?? null;
 
         if (null === $driverClass) {
-            throw ContainerException::forService(
-                $requestedName,
-                self::class,
-                'no driver configured',
-            );
+            throw ContainerException::forMissingDriver($requestedName, self::class);
         }
 
         /** @var DriverInterface|PdoDriverInterface $driver */
diff --git a/src/Container/AdapterInterfaceDelegator.php b/src/Container/AdapterInterfaceDelegator.php
index 64b8384a..8213006e 100644
--- a/src/Container/AdapterInterfaceDelegator.php
+++ b/src/Container/AdapterInterfaceDelegator.php
@@ -7,7 +7,7 @@
 use Laminas\ServiceManager\Exception\ServiceNotFoundException;
 use PhpDb\Adapter\AdapterAwareInterface;
 use PhpDb\Adapter\AdapterInterface;
-use PhpDb\Exception;
+use PhpDb\Exception\ContainerException;
 use Psr\Container\ContainerExceptionInterface;
 use Psr\Container\ContainerInterface;
 use Psr\Container\NotFoundExceptionInterface;
@@ -33,18 +33,11 @@ public function __invoke(
         $instance = $callback();
 
         if (! $instance instanceof AdapterAwareInterface) {
-            throw new Exception\RuntimeException(sprintf(
-                'Delegated service "%s" must implement %s',
-                $name,
-                AdapterAwareInterface::class,
-            ));
+            throw ContainerException::forNonAdapterAwareDelegate($name, AdapterAwareInterface::class);
         }
 
         if (! $container->has($this->adapterName)) {
-            throw new ServiceNotFoundException(sprintf(
-                'Service "%s" not found in container',
-                $this->adapterName,
-            ));
+            throw new ServiceNotFoundException(sprintf(ContainerException::MISSING_SERVICE, $this->adapterName));
         }
 
         $databaseAdapter = $container->get($this->adapterName);
diff --git a/src/Container/AdapterInterfaceFactory.php b/src/Container/AdapterInterfaceFactory.php
index fe6db760..b4777cea 100644
--- a/src/Container/AdapterInterfaceFactory.php
+++ b/src/Container/AdapterInterfaceFactory.php
@@ -23,22 +23,14 @@ public function __invoke(
         string $requestedName,
     ): AdapterInterface&Adapter {
         if (! $container->has('config')) {
-            throw ContainerException::forService(
-                $requestedName,
-                self::class,
-                'Container is missing a config service',
-            );
+            throw ContainerException::forMissingConfigService($requestedName, self::class);
         }
 
         $config        = $container->get('config') ?? [];
         $adapterConfig = $config[AdapterInterface::class] ?? $config[Adapter::class] ?? [];
 
         if ([] === $adapterConfig) {
-            throw ContainerException::forService(
-                AdapterInterface::class,
-                self::class,
-                "No configuration found for {$requestedName}",
-            );
+            throw ContainerException::forMissingConfiguration(AdapterInterface::class, self::class, $requestedName);
         }
 
         /** @var class-string<DriverInterface>|class-string<PdoDriverInterface>|null $driverClass */
diff --git a/src/Exception/ContainerException.php b/src/Exception/ContainerException.php
index 20d159ff..d6e7f2b0 100644
--- a/src/Exception/ContainerException.php
+++ b/src/Exception/ContainerException.php
@@ -10,8 +10,46 @@
 
 final class ContainerException extends RuntimeException implements ContainerExceptionInterface
 {
+    /**
+     * The ServiceManager dictates the thrown type here, and Laminas annotates
+     * ServiceNotFoundException @final, so this package owns the wording without owning the
+     * class.
+     */
+    final public const string MISSING_SERVICE = 'Service "%s" not found in container';
+
+    final public const string MISSING_CONFIGURATION = 'No configuration found for %s';
+
+    final public const string MISSING_CONFIG_SERVICE = 'Container is missing a config service';
+
+    final public const string MISSING_DRIVER = 'no driver configured';
+
+    final public const string NON_ADAPTER_AWARE_DELEGATE = 'Delegated service "%s" must implement %s';
+
     final public const string SERVICE = 'Failed to create service "%s" in factory %s Reason: %s';
 
+    public static function forMissingConfigService(string $serviceName, string $factoryClass): self
+    {
+        return self::forService($serviceName, $factoryClass, self::MISSING_CONFIG_SERVICE);
+    }
+
+    public static function forMissingConfiguration(
+        string $serviceName,
+        string $factoryClass,
+        string $requestedName,
+    ): self {
+        return self::forService($serviceName, $factoryClass, sprintf(self::MISSING_CONFIGURATION, $requestedName));
+    }
+
+    public static function forMissingDriver(string $serviceName, string $factoryClass): self
+    {
+        return self::forService($serviceName, $factoryClass, self::MISSING_DRIVER);
+    }
+
+    public static function forNonAdapterAwareDelegate(string $name, string $interface): self
+    {
+        return new self(sprintf(self::NON_ADAPTER_AWARE_DELEGATE, $name, $interface));
+    }
+
     public static function forService(
         string $serviceName,
         string $factoryClass,
diff --git a/src/ResultSet/AbstractResultSet.php b/src/ResultSet/AbstractResultSet.php
index ca236318..b4ddc698 100644
--- a/src/ResultSet/AbstractResultSet.php
+++ b/src/ResultSet/AbstractResultSet.php
@@ -45,7 +45,7 @@ abstract class AbstractResultSet implements ResultSetInterface
     public function buffer(): ResultSetInterface
     {
         if ($this->buffer === -2) {
-            throw new RuntimeException('Buffering must be enabled before iteration is started');
+            throw RuntimeException::forUnbufferedIteration();
         } elseif ($this->buffer === null) {
             $this->buffer = [];
             if ($this->dataSource instanceof ResultInterface) {
diff --git a/src/ResultSet/Exception/RuntimeException.php b/src/ResultSet/Exception/RuntimeException.php
index 379fe2ca..4b972d66 100644
--- a/src/ResultSet/Exception/RuntimeException.php
+++ b/src/ResultSet/Exception/RuntimeException.php
@@ -6,4 +6,12 @@
 
 use PhpDb\Exception;
 
-class RuntimeException extends Exception\RuntimeException {}
+class RuntimeException extends Exception\RuntimeException
+{
+    final public const string UNBUFFERED_ITERATION = 'Buffering must be enabled before iteration is started';
+
+    public static function forUnbufferedIteration(): self
+    {
+        return new self(self::UNBUFFERED_ITERATION);
+    }
+}
diff --git a/test/unit/Adapter/Container/AbstractAdapterInterfaceFactoryTest.php b/test/unit/Adapter/Container/AbstractAdapterInterfaceFactoryTest.php
index bc55857f..e8de58e1 100644
--- a/test/unit/Adapter/Container/AbstractAdapterInterfaceFactoryTest.php
+++ b/test/unit/Adapter/Container/AbstractAdapterInterfaceFactoryTest.php
@@ -93,7 +93,7 @@ public function testGetConfigReturnsEmptyWhenContainerHasNoConfig(): void
     #[DataProvider('providerInvalidService')]
     public function testInvalidService(string $service): void
     {
-        $this->expectException(ServiceNotFoundException::class);
+        self::expectException(ServiceNotFoundException::class);
         $this->serviceManager->get($service);
     }
 
@@ -111,8 +111,8 @@ public function testInvokeThrowsWhenDriverNotConfigured(): void
         $factory = new AbstractAdapterInterfaceFactory();
         $factory->canCreate($container, 'PhpDb\Adapter\NoDriver');
 
-        $this->expectException(ContainerException::class);
-        $this->expectExceptionMessage('no driver configured');
+        self::expectException(ContainerException::class);
+        self::expectExceptionMessage(ContainerException::MISSING_DRIVER);
         $factory($container, 'PhpDb\Adapter\NoDriver');
     }
 
diff --git a/test/unit/Adapter/Container/AdapterInterfaceDelegatorTest.php b/test/unit/Adapter/Container/AdapterInterfaceDelegatorTest.php
index 27d727d9..c263b875 100644
--- a/test/unit/Adapter/Container/AdapterInterfaceDelegatorTest.php
+++ b/test/unit/Adapter/Container/AdapterInterfaceDelegatorTest.php
@@ -8,10 +8,12 @@
 use Laminas\ServiceManager\Exception\ServiceNotFoundException;
 use Laminas\ServiceManager\ServiceManager;
 use PhpDb\Adapter\Adapter;
+use PhpDb\Adapter\AdapterAwareInterface;
 use PhpDb\Adapter\AdapterInterface;
 use PhpDb\Adapter\Driver\DriverInterface;
 use PhpDb\Adapter\Platform\PlatformInterface;
 use PhpDb\Container\AdapterInterfaceDelegator;
+use PhpDb\Exception\ContainerException;
 use PhpDb\Exception\RuntimeException;
 use PhpDb\ResultSet\ResultSetInterface;
 use PhpDbTest\Adapter\TestAsset\ConcreteAdapterAwareObject;
@@ -24,6 +26,8 @@
 use Psr\Container\NotFoundExceptionInterface;
 use stdClass;
 
+use function sprintf;
+
 #[Group('unit')]
 #[CoversMethod(AdapterInterfaceDelegator::class, '__construct')]
 #[CoversMethod(AdapterInterfaceDelegator::class, '__set_state')]
@@ -247,8 +251,8 @@ public function testSetAdapterShouldNotBeCalledForMissingAdapter(): void
 
         $callback = static fn(): ConcreteAdapterAwareObject => new ConcreteAdapterAwareObject();
 
-        $this->expectException(ServiceNotFoundException::class);
-        $this->expectExceptionMessage('Service "PhpDb\Adapter\AdapterInterface" not found in container');
+        self::expectException(ServiceNotFoundException::class);
+        self::expectExceptionMessage(sprintf(ContainerException::MISSING_SERVICE, AdapterInterface::class));
 
         (new AdapterInterfaceDelegator())(
             $container,
@@ -268,10 +272,12 @@ public function testSetAdapterShouldNotBeCalledForWrongClassInstance(): void
 
         $callback = static fn(): stdClass => new stdClass();
 
-        $this->expectException(RuntimeException::class);
-        $this->expectExceptionMessage(
-            'Delegated service "stdClass" must implement PhpDb\Adapter\AdapterAwareInterface',
-        );
+        self::expectException(RuntimeException::class);
+        self::expectExceptionMessage(sprintf(
+            ContainerException::NON_ADAPTER_AWARE_DELEGATE,
+            stdClass::class,
+            AdapterAwareInterface::class,
+        ));
 
         (new AdapterInterfaceDelegator())(
             $container,
diff --git a/test/unit/Container/AdapterInterfaceFactoryTest.php b/test/unit/Container/AdapterInterfaceFactoryTest.php
index cbdf7b08..29dc54c5 100644
--- a/test/unit/Container/AdapterInterfaceFactoryTest.php
+++ b/test/unit/Container/AdapterInterfaceFactoryTest.php
@@ -111,8 +111,8 @@ public function testInvokeThrowsWhenAdapterConfigIsEmpty(): void
 
         $factory = new AdapterInterfaceFactory();
 
-        $this->expectException(ContainerException::class);
-        $this->expectExceptionMessage('No configuration found for');
+        self::expectException(ContainerException::class);
+        self::expectExceptionMessage('No configuration found for');
         $factory($container, AdapterInterface::class);
     }
 
@@ -130,8 +130,8 @@ public function testInvokeThrowsWhenContainerHasNoConfig(): void
 
         $factory = new AdapterInterfaceFactory();
 
-        $this->expectException(ContainerException::class);
-        $this->expectExceptionMessage('Container is missing a config service');
+        self::expectException(ContainerException::class);
+        self::expectExceptionMessage(ContainerException::MISSING_CONFIG_SERVICE);
         $factory($container, AdapterInterface::class);
     }
 }
diff --git a/test/unit/Exception/ContainerExceptionTest.php b/test/unit/Exception/ContainerExceptionTest.php
index d14a42ff..b3481394 100644
--- a/test/unit/Exception/ContainerExceptionTest.php
+++ b/test/unit/Exception/ContainerExceptionTest.php
@@ -15,9 +15,59 @@
 use function sprintf;
 
 #[Group('unit')]
+#[CoversMethod(ContainerException::class, 'forMissingConfigService')]
+#[CoversMethod(ContainerException::class, 'forMissingConfiguration')]
+#[CoversMethod(ContainerException::class, 'forMissingDriver')]
+#[CoversMethod(ContainerException::class, 'forNonAdapterAwareDelegate')]
 #[CoversMethod(ContainerException::class, 'forService')]
 final class ContainerExceptionTest extends TestCase
 {
+    #[Test]
+    public function forMissingConfigServiceComposesTheReasonIntoTheServiceTemplate(): void
+    {
+        self::assertSame(
+            sprintf(
+                ContainerException::SERVICE,
+                'Svc',
+                'Factory',
+                ContainerException::MISSING_CONFIG_SERVICE,
+            ),
+            ContainerException::forMissingConfigService('Svc', 'Factory')->getMessage(),
+        );
+    }
+
+    #[Test]
+    public function forMissingConfigurationNamesTheRequestedService(): void
+    {
+        self::assertSame(
+            sprintf(
+                ContainerException::SERVICE,
+                'Svc',
+                'Factory',
+                sprintf(ContainerException::MISSING_CONFIGURATION, 'Requested'),
+            ),
+            ContainerException::forMissingConfiguration('Svc', 'Factory', 'Requested')->getMessage(),
+        );
+    }
+
+    #[Test]
+    public function forMissingDriverComposesTheReasonIntoTheServiceTemplate(): void
+    {
+        self::assertSame(
+            sprintf(ContainerException::SERVICE, 'Svc', 'Factory', ContainerException::MISSING_DRIVER),
+            ContainerException::forMissingDriver('Svc', 'Factory')->getMessage(),
+        );
+    }
+
+    #[Test]
+    public function forNonAdapterAwareDelegateRendersItsTemplate(): void
+    {
+        self::assertSame(
+            sprintf(ContainerException::NON_ADAPTER_AWARE_DELEGATE, 'Svc', 'SomeInterface'),
+            ContainerException::forNonAdapterAwareDelegate('Svc', 'SomeInterface')->getMessage(),
+        );
+    }
+
     #[Test]
     public function forServiceIsAPsrContainerException(): void
     {
diff --git a/test/unit/ResultSet/AbstractResultSetTest.php b/test/unit/ResultSet/AbstractResultSetTest.php
index fc1401b7..0f02c102 100644
--- a/test/unit/ResultSet/AbstractResultSetTest.php
+++ b/test/unit/ResultSet/AbstractResultSetTest.php
@@ -55,8 +55,8 @@ public function testBuffer(): void
         ]));
         $resultSet->next(); // start iterator
         // Verify buffer() throws exception when called after iteration starts
-        $this->expectException(RuntimeException::class);
-        $this->expectExceptionMessage('Buffering must be enabled before iteration is started');
+        self::expectException(RuntimeException::class);
+        self::expectExceptionMessage(RuntimeException::UNBUFFERED_ITERATION);
         $resultSet->buffer();
     }
 
@@ -248,7 +248,7 @@ public function testInitialize(): void
         ]));
 
         // Verify invalid data type throws exception
-        $this->expectException(TypeError::class);
+        self::expectException(TypeError::class);
         /** @noinspection ALL */
         $resultSet->initialize('foo');
     }
diff --git a/test/unit/ResultSet/Exception/RuntimeExceptionTest.php b/test/unit/ResultSet/Exception/RuntimeExceptionTest.php
new file mode 100644
index 00000000..bab9cbdb
--- /dev/null
+++ b/test/unit/ResultSet/Exception/RuntimeExceptionTest.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpDbTest\ResultSet\Exception;
+
+use PhpDb\Exception\ExceptionInterface;
+use PhpDb\ResultSet\Exception\RuntimeException;
+use PHPUnit\Framework\Attributes\CoversMethod;
+use PHPUnit\Framework\Attributes\Group;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\TestCase;
+
+#[Group('unit')]
+#[CoversMethod(RuntimeException::class, 'forUnbufferedIteration')]
+final class RuntimeExceptionTest extends TestCase
+{
+    #[Test]
+    public function forUnbufferedIterationRendersItsTemplate(): void
+    {
+        self::assertSame(
+            RuntimeException::UNBUFFERED_ITERATION,
+            RuntimeException::forUnbufferedIteration()->getMessage(),
+        );
+    }
+
+    #[Test]
+    public function forUnbufferedIterationReturnsTheComponentExceptionType(): void
+    {
+        self::assertInstanceOf(ExceptionInterface::class, RuntimeException::forUnbufferedIteration());
+    }
+}
diff --git a/test/unit/ResultSet/ResultSetIntegrationTest.php b/test/unit/ResultSet/ResultSetIntegrationTest.php
index bbe05321..f25fd173 100644
--- a/test/unit/ResultSet/ResultSetIntegrationTest.php
+++ b/test/unit/ResultSet/ResultSetIntegrationTest.php
@@ -77,8 +77,8 @@ public function testBufferCalledAfterIterationThrowsException(): void
         $this->resultSet->current();
 
         // Verify buffer() throws exception when called after iteration has started
-        $this->expectException(RuntimeException::class);
-        $this->expectExceptionMessage('Buffering must be enabled before iteration is started');
+        self::expectException(RuntimeException::class);
+        self::expectExceptionMessage(RuntimeException::UNBUFFERED_ITERATION);
         $this->resultSet->buffer();
     }
 
@@ -261,7 +261,7 @@ public function testInvalidDataSourceRaisesException(mixed $dataSource): void
         }
 
         // Verify invalid data source throws TypeError
-        $this->expectException(TypeError::class);
+        self::expectException(TypeError::class);
         $this->resultSet->initialize($dataSource);
     }
 
@@ -309,7 +309,7 @@ public function testRowObjectPrototypeMayBePassedToConstructor(): void
     public function testSettingInvalidReturnTypeRaisesException(mixed $type): void
     {
         // Verify invalid return type throws TypeError
-        $this->expectException(TypeError::class);
+        self::expectException(TypeError::class);
         new ResultSet(ResultSet::TYPE_ARRAYOBJECT, $type);
     }