Three cowboys are about to be strung up for cattle rustling.

The lynch mob takes them to a tree at the edge of the Rio Grande.

They put the first cowboy in the noose, but he's so sweaty, he slips out, falls into the river, and swims to freedom.

They tie the noose around the second cowboy's neck. He, too, slips out of the rope, drops into the river, and gets away.

It's the third rustler's turn. He looks at the mob and says...

"Could y'all do me a favor? Tighten that noose a bit, I can't swim".