A guy takes his ill and aging wife in to the doctors office.

After a full examination, the doc tells the guy its one of two things.

The Doc says, Well, its either Alzheimers disease or AIDS.

What do you mean! The guy says, Cant you tell the difference?

Well, says the Doc, the two look a lot alike in the early stages… Tell you what ya do…Drive her way out into the country, kick her out of the car, and if she finds her way back, – dont have sex with her anymore!