Trampolines are very popular in the United States. You can purchase a new trampoline with padding and enclosure for under $300. They're fun, I admit it. However, when I was ten-years-old, I was jumping with 3 other people, as we often did, and I got "power-boosted", which means I flew way up high and when I landed back on the trampoline, I was on my side and my leg had swung out funny upon landing. I cracked my femur on the growth plate. I was in a cast from my thigh to the tip of my toes for 6 weeks. The result today is that I have a 1-inch discrepancy between my legs and it causes pain in my foot, hip and back.

We have a perfect yard for a trampoline and I think about it, but I just can't. The only safe way to use a trampoline is one person at a time and let's face it, no kid thinks that is fun. Take the poll, do you think trampolines are safe or not?

Wikipedia reports:

There has been an increase in the number of home trampolines in recent years and a corresponding increase in the number of injuries reported, leading some medical organizations to suggest that they be banned. Authorities recommend that only one person should be allowed to jump at a time to avoid collisions and people being catapulted in an unexpected direction or higher than they expect.