A son asks his father: "What's the difference between 'potential' and 'reality'."
His father thinks for a moment then says: "Go ask your mother if she'd sleep with George Clooney for a million bucks."
So he does and mom says: "You bet I would!" The boy reports back to his father but still doesn't understand.
So the father says: "Now, go ask your sister if she'd sleep with Brad Pitt for a million bucks."
Off he goes to ask his sister and her reply is: "Absolutely!"
Finally the boy goes back to his dad and says: "I think I get it pop. 'Potentially' we are sitting on two million dollars here... but in 'reality' we're living with a couple of whores."
After his check-up, the doctor calls her into his office and says, "Your husband is suffering from a very serious disease, which, combined with stress, will kill him in a few months. What you have to do is, each morning, fix him a nice breakfast, and be pleasant. Make him a nice lunch to take to work, and for dinner, make meals for him you know he'll enjoy. Don't give him too much to do around the house, especially after he's had a hard day. And don't burden him with too many of your problems, because that'll only increase his stress. And most importantly, make love to him a couple of times a week, and try to give him oral sex once a month or so. If you can do this for the next ten months, I think your husband could regain his health completely."
On the way home, the husband says, "What did the doctor say?"