Frank:” I got fired from my job as a bank guard. “
Bob: What happened?”
Frank: “A thief came into the bank. I drew the weapon and told him that if he took one more step, I’d let him have it. “
Bob: “What did he do then?”
Frank: “He took one more step, so I let him have it. Who wanted that stupid old gun, anyway?”
This joke is included in the Black Book of Jokes. You can order it from here.