This soldier had been stationed overseas and was fooling around on his wife.

She was back home in the states. She found out about it through some
anonymous letters.

The soldier gets a package from his wife. He finds inside a batch of
homemade cookies and a video tape of his favorite stateside TV shows.

He invites a couple of buddies over to watch the tape. They're all
having
a great time eating the cookies and watching episodes of "South Park."

Right in the middle of one episode, though, the tape cuts to a home
video
of the soldier's wife, on her knees, giving the soldier's best friend a
blow job.

After a few seconds, the best friend "does his business" and she
turns,
on camera, and spits it right into . . . a mixing bowl of cookie dough.

The wife then looks right into the camera and says, "I want a
divorce."

Now THAT'S a "Dear John" letter.