How to Rob a Bank

A man with a gun goes into a bank and demands their money. Once he is given the money, he turns to a customer and asks, "Did you see me rob this bank?" the man replied, "Yes sir, I did." The robber then shot him, killing him instantly.

He then turned to a couple standing next to him and asked the man, "Did you see me rob this bank?" The man replied, "No sir, I didn't, but my wife did