i had a trompoline wen i was a kid(when they didnt invent the nets) and broke my right arm three times, my laft twice, my nose and jumped off the trampoline one day crossed my legs in the air and landed on my bum with my legs crossed. lucky i didnt end up in a wheelchair, although i have severe scoliosis now. hmmm the good old days lol..about time they invented the net, the amount of times i got my leg caught in the springs is too many.