When I was 9 or so my friend was doing flips on my trampoline. He had been doing them for 15 minutes or so. The last one he did that day caused his knees to go into his lips and his front teeth went through his bottom lip! He had teeth marks on his knees! :x
Trampolie Rules
1) Jump on it alone. Catching someone else's rebound all wrong could mean broken limb.
2) Do tricks as safe as possiable. And
3) If female present and you trying to impress, Forget and save your self some pain...
Tip 4) try not to laugh when watching someone suffer this great pain. :mrgreen: