diff --git a/CHANGELOG.md b/CHANGELOG.md
index fbf5d8c..fdf3742 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change Log
 
+### Added
+
+- Default response functionality
+- Default exception functionality
 
 ## 1.0.1 - 2017-05-02
 
diff --git a/spec/ClientSpec.php b/spec/ClientSpec.php
index a6ad71d..77c6390 100644
--- a/spec/ClientSpec.php
+++ b/spec/ClientSpec.php
@@ -36,6 +36,13 @@ function it_returns_a_response_for_a_request(RequestInterface $request, Response
         $this->sendRequest($request)->shouldReturn($response);
     }
 
+    function it_returns_the_default_response_for_a_request(RequestInterface $request, ResponseInterface $response)
+    {
+        $this->setDefaultResponse($response);
+
+        $this->sendRequest($request)->shouldReturn($response);
+    }
+
     function it_throws_an_exception_for_a_request(RequestInterface $request)
     {
         $this->addException(new \Exception());
@@ -43,6 +50,13 @@ function it_throws_an_exception_for_a_request(RequestInterface $request)
         $this->shouldThrow('Exception')->duringSendRequest($request);
     }
 
+    function it_throws_the_default_exception_for_a_request(RequestInterface $request)
+    {
+        $this->setDefaultException(new \Exception());
+
+        $this->shouldThrow('Exception')->duringSendRequest($request);
+    }
+
     function it_creates_an_empty_response_when_none_is_added(
         RequestInterface $request,
         ResponseFactory $responseFactory,
diff --git a/src/Client.php b/src/Client.php
index 090e2bc..57309f5 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -39,11 +39,21 @@ class Client implements HttpClient, HttpAsyncClient
      */
     private $responses = [];
 
+    /**
+     * @var ResponseInterface|null
+     */
+    private $defaultResponse;
+
     /**
      * @var Exception[]
      */
     private $exceptions = [];
 
+    /**
+     * @var Exception|null
+     */
+    private $defaultException;
+
     /**
      * @param ResponseFactory|null $responseFactory
      */
@@ -67,6 +77,14 @@ public function sendRequest(RequestInterface $request)
             return array_shift($this->responses);
         }
 
+        if ($this->defaultException) {
+            throw $this->defaultException;
+        }
+
+        if ($this->defaultResponse) {
+            return $this->defaultResponse;
+        }
+
         // Return success response by default
         return $this->responseFactory->createResponse();
     }
@@ -81,6 +99,18 @@ public function addException(\Exception $exception)
         $this->exceptions[] = $exception;
     }
 
+    /**
+     * Sets the default exception to throw when the list of added exceptions and responses is exhausted.
+     *
+     * If both a default exception and a default response are set, the exception will be thrown.
+     *
+     * @param \Exception|null $defaultException
+     */
+    public function setDefaultException(\Exception $defaultException = null)
+    {
+        $this->defaultException = $defaultException;
+    }
+
     /**
      * Adds a response that will be returned.
      *
@@ -91,6 +121,16 @@ public function addResponse(ResponseInterface $response)
         $this->responses[] = $response;
     }
 
+    /**
+     * Sets the default response to be returned when the list of added exceptions and responses is exhausted.
+     *
+     * @param ResponseInterface|null $defaultResponse
+     */
+    public function setDefaultResponse(ResponseInterface $defaultResponse = null)
+    {
+        $this->defaultResponse = $defaultResponse;
+    }
+
     /**
      * Returns requests that were sent.
      *