All I know is that my parents were the type to leave the grocery cart/shopping things/end dinner/whatever and leave if me or my sister acted up. Then it was 'oh shit' time. Needless to say, that didn't happen too often.
Mom and Dad did the same thing to me. Mom carried around her big wooden spoon in her purse and pulled it out if we even thought about acting up. Sure got us quiet in a hurry. LOL
Nowadays running all over the place knocking over waiters and food displays is perfectly permitted... as is screaming.
Amazing how meaningful some learning opportunities can be!