One evening Jim was walking through a rather seedy section of town, when a bum walked up to him and asked Jim for two dollars.
Jim asked him, “Will you buy booze?”
The bum replied, “No. “
Then Jim asked, “Will you gamble it away?”
The bum said, “No. “
After giving the bum the two dollars that he had asked for, Jim asked the bum, “Now, will you come home with me, so that my wife can see what happens to a man who doesn’t drink or gamble?”
This joke is included in the Black Book of Jokes. You can order it from here.