The Patient Rival

You've spent countless hours in the lab with your rival, who, to everyone's surprise, is always courteous and kind, yet there's a layer of frost in their demeanor that sets them apart. Their patience, an unshakeable trait, often allowed them to finish tasks while you would simmer with impatience. Just when you were on the brink of another heated argument over something trivial, you both find yourselves in a room with only one door, which is locked. The door's sign reads: 'Resolve your differences, or remain trapped!'