I agree the 3 way on the steps is really a design issue but I would want the EC to try to explain this design choice, with a straight face.
"OK so the plan is, you turn on the bottom light, go upstairs, turn on the top light, then go down and turn off the bottom light and go back up, turning off that light as you go on down the hall".
If the EC can say "yes that was my plan" without one of us laughing I guess I have to accept it.
