A guy walks into a bar with his pet monkey. He orders a drink, and while he's drinking, the monkey jumps all around the place. The monkey grabs some olives off the bar and eats them, then grabs some sliced limes and eats them, then jumps onto the pool table, grabs one of the billiard balls, sticks it in his mouth, and to everyone's amazement, somehow swallows it whole.

The bartender screams at the guy, "Did you see what your monkey just did?"

The guy says "No, what?"

"He just ate the cue ball off my pool table! He swallowed it whole!"

"Yeah, that doesn't surprise me," replied the guy, "The little bastard eats everything in sight. Sorry. I'll pay for the cue ball and stuff."

He finishes his drink, pays his bill, pays for the things the monkey ate, and leaves.

Two weeks later he's in the bar again with his monkey. He orders a drink and the monkey starts running around the bar.

While he's finishing his drink, his monkey finds a maraschino cherry on the bar. He grabs it, sticks it up his ass, pulls it out, and eats it. Then the monkey finds a peanut, and again sticks it up his ass, pulls it out, and eats it.

The bartender is disgusted. "Did you see what your monkey did now?", he asks.

"No, what?", replies the guy.

"Well, he stuck a maraschino cherry and a peanut up his ass, pulled them out, and ate em!".

"Yeah, that doesn't surprise me," replied the guy. "He still eats everything in sight, but ever since he had to pass that cue ball, he measures everything first."