The weight loss program

A man wants to lose his beer belly, so he signs up for a free weight loss program he read about online.

On the first day, he hears a knock at his door. He answers it, and sees an extremely attractive woman standing there.

"If you catch me, you get to keep me," says the woman.

So the man chases after the woman and is unable to catch her, but he ends up shedding a few pounds anyway.

The next day, he hears another knock at his door. He goes to answer it, and sees an even more attractive woman standing there.

"If you catch me, you get to keep me," she says, just like the previous woman.

So the man chases after her, but is unable to catch her. He ends up shedding a few more pounds thanks to this chase.

The next day, he hears yet another knock at his door. He goes to answer it, and sees yet another woman, even more attractive than the previous two.

"If you catch me, you get to keep me," says the woman, just like the others.

So the man chases after her, but is still unable to catch her. However, the program is still effective and he loses even more pounds.

The next day, the man is looking at himself in the mirror and admiring how much weight he's lost. He hears yet another knock at the door.

"I wonder how attractive THIS woman will be," the man says out loud. He goes to answer it, and sees the fattest, ugliest woman he's ever seen standing at his doorstep. She grins at him.

"If I catch you, I get to keep you," she says.