Waiters must get really confused/annoyed whenever people fight over who's paying for the meal, amirite?

Whoever is the nicest tipper should always pay, :D.

Yes we do.

Waitresses, on the other hand..

It's not just the waiters that have to deal with that. Movie theater employees have to deal with it, too.

Or when they state: 'Do NOT let this man pay.' What must I do? Tackle him if he takes out his card?