Ezdno, that doesn't explain why the salesman that sold me my WRX told me "the A/C is totally electric, so it doesn't take any power from the motor!"
Nevermind that it's a totally fabricated statement, as the A/C compressor is belt driven... how about this response:
Me: "Okay, so where does the power come from?"
Him: "The alternator!"
Me: "And what powers the alternator?"
Him: "The engine..."
Me: "So how do you figure the A/C doesn't take power from the engine?"
Him: "'Cause it's electric!"
Me: "Nevermind.
"
That's not just not knowing your product, that's also being plain old stupid. It's a shame that most people would probably swallow his logic line and sinker. Then wonder why the car is such a pig under 3000 rpm w/ the A/C on.