Buy One, Get One Fired

(I’m on vacation and am browsing at a beach shop. There’s a buy one t-shirt, get one 50% off deal, but there’s only one t-shirt I want.)

Shop Owner: “You know we’re running a buy one get one 50% off deal right now? You should pick another one for half off!”

Me: “No thanks. This one is all I need.”

Shop Owner: *sighs* “All right, but if I’m mean to my employees later, it’s your fault!”