The father's plan was: "If our son takes the money, he will be a businessman, if he takes the bible, he will be a priest, but if he takes the bottle of whiskey, I'm afraid our son will be a drunk."
So, the parents waited patiently, hiding in the nearby closet with a direct view of the dining room table. Peeping through the keyhole they saw their son arrive. The son looked at the items left on the table. Immediately, he took the twenty-dollar bill, and slid it in his pocket. Next, he picked up the bible, flipped through it, and took it. Then, he grabbed the bottle of whiskey, opened it and took a swig. Then he left for his room, carrying all three items.
The father looked at his wife, and said: "Honey, our boy is going to be a politician!"
Source: Catholic Humor