A farmer and his brand new bride were riding home from the chapel in a wagon
pulled by a team of horses, when the older horse stumbled. The farmer said,
"That's once."
A little further along, the poor old horse stumbled again. The farmer said,
"That's twice."
After a little, while the poor old horse stumbled again. The farmer didn't
say anything, but reached under the seat, pulled out a shotgun and shot the
horse.
His brand new bride raised all kind of heck with him, telling him, "That was
an awful thing to do." The farmer said, "That's once."