Trampolines

What Is It?

You likely have known someone who has broken a limb on one of these.  It's a device to jump upon and perform tricks on. 

What Happened?

Old school models have no safety net...and holes and metal to fall through and hit your body on.  Or you can fall right off and really injure yourself.  It generally can cause head, ankle and neck injuries...there are too many cases to even get a proper number.

Aftermath?

They've tried to make them safer by adding the nets around and making them more fall proof.

Links:

http://www.cbc.ca/news/health/doctors-warn-of-trampoline-injury-risks-1.1250737