Two blondes were found frozen to death in their car last winter. One had a camcorder on her lap, so the police played back the tape. Here is what they heard (because the video was only scenery).
Blonde 1: The engine is too cold. What do we do?
Blonde 2: I heard once that if you turn on the heater when the engine is hot, the engine will cool down. I tried it last summer, and it worked.
Blonde 1: So how does that help us? Our engine is too cold.
Blonde 2: Maybe if we turn the air conditioner on, it will heat up the engine?
Blonde 1: But won't we get cold?
Blonde 2: Well, with that heater thing, they said to open the windows.