When I'm at work, in the corp job, and need a laugh... Break.com, formerly Big-boys.com always delivers a chuckle. The best video site I've seen to date, particularly vs the horrible quality video on Google video.
Break.com has videos not safe to watch at work, but there are safe ones that just hurt they're so funny. Like this SLAPWAR!
I suggest you register & then you can keep favorites. (Plus, the source isn't hard to decipher & you can dload the video if you want.)