The Ass

But, no, they had a queer show, and one guy, you know, the announcer, you know, I say he was one of those guys on television
He walked over to one of the contestants, said, "Now, if I poured a fifth of water in a bucket and a fifth of wine in a bucket, and put 'em both down on the stage, and brought a donkey out, which one would he drink out of?"
An old wino sitting in the back said, "He’d drink out the wine, that's what he'll drink out"
Another person said, "No, he’d drink out the water"
He said, "Why would he drink out the water?"
Said, "He'd drink out the water 'cause he's a ass"