A puppeteer performs a show with a duck glove puppet. The duck opens its mouth:

“And now I’d like to tell you a joke about cops!”

There rises a cop in the last row:

“Well, that’s enough! I’m bored of it. Those damned anecdotes always make police look like a fool!”

The puppeteer blushes and tries to apologize.

“You shut up!” the cop barks. “I’m talking to your duck!”