I dont know if this has been discussed on here or not so if not I am bringing it to everyones attention. young kids are getting some kind of rush off this by cutting off there oxygen from the brain and then letting it rush to the brain. They home and try this buy there self and end up hanging themselves. look up choking game in google search. You will find alot about it. Its a serious matter that alot of us parents need to watch out for.