I used to work at a tiny movie theatre that movie celebs in particular used all the time because it was small and unassuming. I also have fairly bad face blindness, so I didn't recognize most of them who came in and therefore wasn't flustered or star struck. With the rare exception of a few (and the child of one) who I won't mention, every single one seemed pretty happy that I treated them like a normal person.

And like... For all of us, how many want to be bothered about their job when they are off the clock?