Because she was an operetta (operator).
The unemployment line.
They work it out with a pencil.
Me: You just give the bartender your order. Her: ... Me: It's really pretty easy. Her: *leaves*
Just pinch yourself, if you don't wake up, she doesn't.
They both sang at the police.
Disclaimer: I don't know how well this joke will work in english. What's yellow and lies in a pond? An excevator. You don't think this is funny? Neither does the operator.
Nutty Marietta!