Steve I still say the issue is sustainability. Sure that 50 cent shutter will work for a little while but what will happen when the homeowner can't get the plug to go in? They are going to break this thing off. Then what do you have?
We don't mind trying to guess what the dumbest kid might do when we design these things but we then ignore what the dumbest adult might do saying we have no control over that. You can certainly make an educated guess.
What is he going to be presented with when he pries the "tamper proof" device off with a butter knife? As I said, if it ends up being a regular 5-15 under there, no harm no foul but if it is the bare contacts you have made a one in a million problem an imminent one.
Prying the tamper proof device off when it binds up is a lot more likely scenario than a kid sticking 2 objects in there at the same time.
