Have you ever fell rotten a roof? Did it hurt? I'm thinking about jump my bike from the roof...
Did it hurt? I'm thinking about jump my bike from the roof but not positive I can land it.
Answers: Unless you enjoy special training and the proper safety equipment, don't try it. You would also necessitate proper supervision.
Last year I did some volunteer work for a local "Extreme Makeover." charity in Eastern Washington. The home-owner be helping his neighbor re-roof his house, he fell one story to the ground landing on his nail-gun and broke his spine. He will be in a wheelchair for the rest of his enthusiasm.