Two waiters go to their credit union on their lunch break, when armed robbers burst in. While several of the robbers take the money from the tellers, others line the customers, including the waiters, up against a wall, and proceed to take their wallets, watches, and other valuables. While this is going on, the first waiter jams something in the other waiters hand. Without looking down, the other waiter whispers, "What is this?" to which the first waiter replies, "It's your share of the tips from that party of 12."