Many years ago, I know'd an old feller that got married.
He had taken a horse and buggy to the church for them to go home in.
They was headed home and the old mare stumbled.
The feller sez "That's once"
They went on their way and the old gal stumbled agin.
"That's twice"
On the third occurance, the ol boy pulls out a pistol and shoots the old mare.
The new bride plumb throws a fit. She chews on him sumthin' fierce.
He sets there plumb quiet until she run out of wind and sed,
"That's once!"
They lived happily ever after....