mm wrote:
And I knjow they can be dangerous. Haven't you seen that commercial
where the guy finds a wall switch they never use, his wife doesn't
know what it's for, and every time he turns it on and off, the garage
door 3 doors away whacks the neighbors car.

It's a takeoff on a Steven Wright joke.

"I have a switch in my apartment that doesn't do anything. Every once
in a while I turn it on and off. On and off. On and off. One day I got
a call from a woman in France who said, 'Cut it out!'"

--
Music hath charms to soothe the savage breast.
That's why stereo has two channels.