I work at a fairly popular burger joint. We have been getting a lot of mobile and delivery app orders, it's par for the course. This lady comes through at 11:00, doesn't even wait for us to give the greeting and says "Pick up for (name)!" And pulls up to the window. We check the order and say oh, it's gonna be a short wait, we have to cook up some fresh chicken. She lets out this disgusted groan and says "UGH. Well how long is it gonna take?! I'm on a timer!" It's gonna be maybe five minutes. "Greaaaaat." We have her pull into a parking spot while we wait. Five minutes go by, we pack up the order, and I take it out to her. She just glares at me and goes "And that is?" "The order for (name)." "Oh yeah? Are you sure?" At this point I am through with her stank ass attitude. I say yeah I am. I hand her the order and yell have a good night as I'm walking back inside, and follow it with fucking cow as my hand hits the door. I know she heard me and she peeled out mad as hell and whipped around the corner to leave. Like...I get you have to be timely on deliveries, but there's no need to act like that.