While my opinion may make me unpopular with the rest of the people on this thread, I feel that accidents are going to happen, no matter what.
While these numbers are aged, consider this from Children's Hospital Boston:
In 1998 the number of injuries were reported for children and adolescents ages 5 - 14:
Basketball - 200,000
Baseball and Softball - 91,000
Bicycling - 320,000
Football - 159,000
Gymnastics - 25,500
Ice Skating - 15,500
In-line/Roller Skating - 67,000
Skateboarding - 27,000
Snow skiing/snowboarding - 13,500
Soccer - 77,500
Trampolines - 75,000
So, I guess what I am trying to say, is YES playing on a trampoline can be dangerous - and deadly.
But so is riding a bicycle, playing soccer, playing basketball, playing football, or playing baseball.....