A guy's in the bar when an alien from outer space walks through the door and sits next to him.

The drunk thinks nothing of it, trying to maintain good inter-galactic peace, and all.

The alien orders himself a drink. When he's halfway through with the drink, he licks his green finger, and then sticks the finger in the drunk's ear.

The drunk's irritated, but again, in the interest of seeing there's no interstellar war, he says nothing.

The alien pulls his finger out, finishes his drink, and then orders another one. Once he reaches the half-way point in that drink, he again licks his finger, then puts that finger into the drunk's ear.

"Hey, Buddy, how 'bout let's lay off the ear pokin', what do you say?"

Well, as you know, halfway through the alien's third drink, the alien licks and sticks once again. The drunk has forgotten his peaceful ways and says, as forcibly as he can, "Look, asshole, if you do that again, I'm gonna rip your balls off!"

The alien orders one more drink. Stirs it for awhile . . . and, you guessed it, licks that green finger and again sticks it right in the drunk's ear.

"Goddammit!!!" the drunk roars, and reaches between the alien's legs to carry out his threat. But there's "nothing there".

The drunk's a little confused. "Man, if you've got no balls, then how do you screw?"

The alien licks his finger and sticks it in the drunk's ear.