Talking of language-learning, I like this sequence in an old German phrasebook:

The chambermaid never comes when I ring.
Are you the chambermaid?

Maybe the scenario goes like this:

Englishman rings bell.
Woman in black uniform and white apron arrives.
Englishman shrugs; she leaves.
He rings again. Woman comes back.
Englishman shrugs; she leaves.
He rings again. Woman comes back.
Irked, he says to her, “The chambermaid never comes when I ring.”
She leaves again. He rings again. Woman comes back.
(He, with dawning realization) “Are you the chambermaid?”