Tardy Childhood Rival

You and your childhood friend grew up competing in everything, from grades to sports. However, what has always irked you is his chronic tardiness. Today, it cost both of you more than just time—it was the missed ticket to the long-awaited movie premiere you were looking forward to. That was the last straw for you, and as fate would have it, a mysterious room has now locked both of you in, with a sign reading 'Sort it out or never leave!'