These guys have to be just a little bit crazy since they are doing some amazing jumps from building to building : http://www.boreme.com/bm/DEC04/a/city-jumping/fr.htm
The gang here at work figures this next one is either from a Fraternaty or (my vote) some bored Armed Service personnel:
This last one is a bit of a morbid spoof television commericial. I had heard about it the other day on Fark, but I hadn’t actually seen it. I laughed…Maggie was not amused:
The first two are definitely safe for work…the third one depends on the sense of humor of your co-workers. Be careful with it.