They stamp your hand when you go in & your kid's hand too. It's not like you are gonna stagger out with the wrong kid when you leave... By the time you consider having to re-mortgage your house to cover the bill for the party, wait in line 20 minutes to get to the skee ball game that last 3 minutes, chase your kid out of the maze to leave with your head pounding & try to help your kid decide how to spend 500 points on 2 dollars worth of plastic crap out of the case, EVERYONE INCLUDING CHUCKY NEEDS A BEER!!!