(I am cleaning up at an office supplies store when a customer walks to the automatic door, about to leave the store.)

Customer: *thrusts hand at door, palm out, as if he’s using ‘the Force’* “Whoosh!”

(The door opens, and he looks back as he exits and sees me looking at him.)

Customer: “Uh, I was just joking…”

Me: “But that door wasn’t even on, sir!”

Customer: *astonished* “Are you serious?”

Me: “Nah, just kidding. Have a nice day, sir!”