I wasn’t a bartender but I worked as a bus boy my first year of college. One day after work the managers told everyone that we needed to start cutting people off that looked like they were too drunk. The next night I over heard a waiter talking to his 6 top.
Waiter: How is everyone?
First Customer: Can we get another round?
Waiter: I can get one for everyone else but you can’t even look at me straight. I’m sorry but I have to cut you off.
Second Customer: DUDE, She’s been cross eyed since birth!
Waiter: One round coming right up!