You’re Not As Sly As You Think
Of course, one of the most common rules that almost everyone breaks is bringing in your own snacks to the movies. The employees don’t blame you either, because nobody wants to pay the theater’s price for a candy bar that’s worth the price of multiple candy bars anywhere else.
That being said, they also almost always know when people are trying to sneak snacks/drinks in, with some people even going to extreme lengths like faking a pregnancy! Not that they necessarily care, but they might get in trouble if a manager sees them let someone in who is clearly breaking the rules.