Ok, follow these instructions for epic lulz.
1. Open new tab, go to http://www.youtube.com/watch?v=SS1dO0JC2EE.
2. Pause video immediately, skip to 0:23 and mute.
3. Open new tab and go to http://www.youtube.com/watch?v=ZThquH5t0ow and let it play.
4. As the second video plays jump back to the first video and press play.