An old prospector walks his tired old mule into a western town one day.
He'd been out in the desert for about six months without a drop of
whiskey. He walked up to the first saloon he came to and tied his old mule
to the hitching rail.

As he stood there brushing some of the dust from his face and clothes, a
gunslinger walked out of the saloon. He had a gun in one hand and a bottle
of whiskey in the other hand. He looked at the old man and laughed.

Then he said, "Hey old man have you ever danced?"

The old man looked up at him and said, "Nope, never had a hankering to."

A crowd had gathered by then and the gunslinger said, "Well you old fool
you're gonna dance now," and he started shooting at the old man's feet.
The old man was hopping around and everybody was laughing. He fired his
last bullet, holstered his gun and turned around to go back in the saloon.

The old man reached up on the mule, got his 10 gauge shotgun and pulled
both hammers back, making a loud click. The gunslinger heard this, then
everything got quiet. He slowly turned around and was looking at the old
prospector aiming both barrels right at him.

The old man asked him, "Did you ever kiss a mule's a&&?"

The gunslinger swallowed hard, then said, "No Sir, but I've always wanted
to!"