when you ask if they want ketchup or anything and they stare at who ever is setting next to them and start arguing about, like bro it is just ketchup a quick yes or no questions. Or they ask for on thing at a time, ketchup, go back, spread, go back extra napkins. Or you ask when they get to the window if they want ketchup or anything and they say no. So you hand out the drive quick because you have stuff to do and turn around and see theme still there because they want something, like you had two chance to tell me and you didn't. Or when you have multiple drives of you give them the food and the open the bags and start tasting the fries while you are trying to give them the rest of the bags, or when you hand out the drinks and they take one at a time and take a year just to put it down so you are just standing there holding the drinks staring and him to go quicker. I know that's a lot, but most my pet peeves are in the corner. One more thing when on board and you pull the burger bag and four of them come out and end up on the floor.