From the ArcaMax Publishing, Jokes Newsletter:
http://www.arcamax.com/news/jokes/s-363902-208592
Horse walks into a bar, orders a beer, sits down at one of the tables,
and starts reading his paper. The bartender is a bit shocked by all
this, but pours the beer, and brings it over to the horse, who
proffers a ten dollar bill for it.
Now the barman figures the horse isn't that bright, so he decides to
pull the old 'short-change' trick on him. He duly goes back to the
horse with 1 dollar. The horse doesn't say a word.
The horse eventually finishes his beer and goes up to the bar to order
another. The bartender says to him, "Y'know, we don't get many horses
in here."
To which the horse replies, "At nine dollars a beer, I'm not
surprised!"