http://www.basicjokes.com/Clean Jokes for a Dirty Worlden-ushttp://www.basicjokes.com/knock.xmlhttp://www.basicjokes.com/BasicJokesLogo.jpghttp://www.basicjokes.com/http://www.basicjokes.com/djoke.php?id=129Knock Knock! <br />Who's there? <br />Evan. <br />Evan who? <br />Evan you should know who it is. <br /><br />Knock Knock! <br />Who's there? <br />Evan. <br />Evan who? <br />Evan and Earth.