Restaurant Customer and Dorothy in “Seems Like Old Times”

[after Dorothy drops off his bill] Excuse me, aren't you forgetting something?

Uh, like what?

Aren't you going to say "Have a nice day"?

No. Look, in the 45 minutes that I've served you, you complained about the food, the coffee, the service, and said that in my case, a sprinkle a day wasn't quite doing the trick. I don't care if you have a pulse, much less a nice day.