The Impatient Checkout Crew

You've always had a knack for bumping into him at the supermarket, where he works as a cashier. His impatience is legendary; you can tell by the way he taps his foot and checks his watch when the line stretches longer than he deems acceptable. You've argued before over the smallest things, like the number of items you have or how you're taking too long to pay. Today is no different, except after your quarrel, you both wake up in a room with a sign: 'Make up or never leave!'