On Wednesday, June 19, 2013 10:08:56 AM UTC-4, wrote:
On Tuesday, June 18, 2013 3:35:16 PM UTC-4, wrote:
In other words, if you run down the hall and flip all four switches to the down position, the lights will always end up OFF.

I never saw him saying anything even close to that. And
I can't imagine that it would make much sense. He said he
had 4 switches controlling a hallway light. Why on earth
would you need to run down the hall and check each switch?
All you need do is look if the light is on or off and then
hit the one switch located where you are exiting the hall.

Obviously you weren't reading carefully because that's EXACTLY what he said.

Nobody's checking each switch. He just wants the "home position" to be all four switches DOWN, and light OFF. It's a form of OCD.

With an even number of switches, you will always have an even number of switches in a certain position with the lights off. Either four down, two down, or four up.

Which of course means you can't do what he wants to do.

Yes, he can. All he wants is, "All four switches DOWN, lights OFF."

What you keep harping on and on about is "All four switches MUST be down for the lights to be OFF." That is not what he wants.

Clearly he was able to achieve it because he replied and stated such. All it required was swapping the wires on the first switch.