I don’t know what is going on at Nightmares Fear Factory in Niagara, Canada–I’ve never been there. Based on these photos of horrified people, though, they have many satisfied customers.
At least these Nightmares Fear Factory customers asked for it, unlike this creepy elevator scenario foisted on unsuspecting people by this Brazilian television show. You couldn’t do this in America–the show would get sued after one of the victims had a heart attack.