Well - when I was a kid my parents never took me to one. In fact I'd never been to one until I had my own child. However, I remember the original Chuck E Cheese with the bowler hat and an almost mob boss look. There was certainly something sinister about him. The current looks is certainly less sinister. Here's what it used to look like:
I know one of the rules there is that the adults are allowed to have fun, play games, etc. However, what I saw almost seemed like the adults at easter egg hunts that are grabbing everything is sight without any concern that it's for the kids. The last time I took my kid to an easter egg hunt, the organizers yelled out "REMEMBER, THIS IS FOR THE KIDS!" I certainly followed my kid around, but was careful around other kids, and only pointed out where to go or one that was missed. I never grabbed anything myself, because I frankly had an unfair advantage.