A banker is out having lunch with his mother one afternoon. Suddenly they hear a loud gunshot and look around to see two people running through through the restaurant shouting at the customers to put all their possessions into a bag or they would get shot.
The mother turns to her son and says "Son, if anything bad happens, just know that I really love you". "Thanks, mum", replies the banker, "and before I forget, here's that £200 I owe you".