A blonde and her husband are laying in bed watching TV, an old western is on.
The husband says to his wife, "I bet you breakfast in bed that the covered wagon hits a rock and the driver falls out dead," "You're on," returned his wife.
They watch the western and sure enough the wagon hits a rock in the dirt road and the driver falls out of the wagon ... dead.
The wife gets out of bed and returns shortly with a tray of food.
After eating the husband says, "I have to admit that I saw this movie before."
She in turn confesses, "I saw the movie before too.
But I didn't think he was stupid enough to ride over the same rock twice...."