Even the televised idiocy of so called 'professional' stunt men makes the creators of Chimpage yawn. If you really want to do something extreme, don't hammer nails into your genitalia - just create your own extreme sport.
Extreme Sports that I generated are:
Swedish One-Legged Monkey Abseiling.
Canadian Blindfolded Shark Jumping.
Australian Freestyle Giraffe Boxing.
[ Extreme Sports Generator ]