"Experts say the trouble usually comes when there are several kids in the bouncer, and they collide"
http://abclocal.go.com/wpvi/story?section=news/health&id=8892959

"Experts say the trouble usually comes when there are several kids in the bouncer, and they collide"

http://abclocal.go.com/wpvi/story?section=news/health&id=8892959