Squeaky Checkout Companion

As the name suggests, you and this character have been stuck together in a supermarket checkout line for hours. Known for their impatience, this person never misses an opportunity to voice their frustrations, loudly tapping their foot and huffing every time someone adds more items to their cart. You've always found their behavior irritating, and today, in the middle of another long wait, you got into a heated argument. The next thing you knew, you awoke in this room with a sign on the door that read: 'Smile or be stuck here forever!'.