A double blind would mean no results are discovered lol.

A single blind test would be fine.

And yes, I’ve done this. I’ve turned away from a device, and my partner either toggled a switch powering thw device, or a switch which wasn’t connected to anything.

Perfect accuracy.

Edit: I replied when i first woke up. I didn’t read carefully.

Neat experiment idea but I don’t have a tools for that lol.

If I ever do, I’ll pin this message and reply to it :p