Here's two videos (a bit older, but still hillarious) i found that were great, on the part of Adam Carolla:
[yt]fXblQDBbqFI[/yt]
LANGUAGE:
[yt]B4hacmvSPaI[/yt]
He totally DOMINATES them.
Funny as heck though, especially when they reach the 'Crystal ball' part in the first one.