They are a staple of Halloween parties everywhere bounce houses kids love them to take a look at how things can go horribly wrong. Turns out this is a largely unregulated business with thousands of... See More
They are a staple of Halloween parties everywhere bounce houses kids love them to take a look at how things can go horribly wrong. Turns out this is a largely unregulated business with thousands of injuries every year ABC's mark Greenblatt is on the story. An inflatable bounce house at his New York soccer field starts floating away. Best of my house is Michael rat -- taking it in several children inside help in the air. The unexpected and frightening ride then comes crashing down on top of several people. I actually took a hit -- back with with the balloon and it bounced off me have my wife initials and true what that a brown. And it was pretty traumatic. OK could anything get up I just I -- -- Ohio. But the people hurt here are just a few of the thousand injured every year in related accidents involving inflatable rides the Consumer Product Safety Commission tells ABC news. There were an estimated. 4700. Emergency room treated injuries. Related to the rides in 2011. A spokesperson told us. It's so important for consumers to anchor the inflatable bounce and supervise the children while in years. -- what happened in Arizona where another inflatable bounce house blows across the field. Again with children inside. Many states have no regulation at all over the inflatable play areas and almost anyone can rent them. In fact ABC news found that for less than 1000 dollars on line you too can buy your very own commercial sized bounce arts the national association of amusement ride safety officials tells ABC. Parents should never let children play inside one without a trained operator right by its -- Some analysts find the -- was there. Mark Greenblatt ABC news New York. Videos and extraordinary I had no idea how easy it was to get one of those things.
This transcript has been automatically generated and may not be 100% accurate.