POS systems including tip requests really piss me off. We recently discovered a great local restaurant and we order food from them (and pick it up, to take home) a few times a month. They have one of those POS systems and it really irritates me to have to tap 'No Tip' in plain view of the cashier every time. We're picking up food; I'm walking up to a counter, collecting a bag, swiping a credit card and leaving. Why the fuck would I tip for that? I don't tip at the grocery store and cashiers there do the same amount of work.