A Desperado rides into town

A Desperado rides into town and downs a few drinks at the saloon. When he steps outside again, he finds his horse has been stolen.
The Desperado swears, steps back into the bar, and fires a round into the piano. The room goes dead silent. “I’m gonna have one more beer,” the Desperado bellows to the terrified crowd, “and if my horse ain’t back where I left him when I’m done, I’ll do here what I had to do in Houston.”
The locals murmur uneasily as the Desperado sips his drink. Lucky for them all, when he steps outside again his horse has been returned.
As the Desperado saddles up, a local can’t help but ask, “Sir, what exactly was it you had to do in Houston?”
The Desperado narrows his eyes and hisses at the man, “I had to walk home.”