My friend's foot is hurt. How to comfort him is humor.

A psychopath went to the bank, knocked on the counter glass with his hand and asked the counter attendant, "Is this bulletproof glass?" The waiter said, "It's bulletproof glass." The psychopath said, "Can you prevent bombs?" The waiter turned pale with fear: "No way." The psycho took out two playing cards from his pocket: a pair of big and small kings, and then stuck them on the glass and said, "Blow! ! ! "Twenty seconds later, the waiter trembled and said," I can't afford it. "