Bart: What is it?
Lisa: Bart, I got a cassette from Mom and Dad. I thought we could
listen to it together.
Bart: Gee, Lis, I'd love to, but this really isn't a good time.
Leader: [from inside barrack] Bart! Who are you talking to?
Bart: Uh ...
Lisa: Lisa! You're talking to Lisa.
Bart: I'm talking to ... no one. [closes door]
-- Ouch, "The Secret War of Lisa Simpson"