Thank for the test Amir, I tried to come up with other ideas and could not.
It reminds me of when I was visiting an electrical shop that repaired cryptographic electronics gear and some one there had read somewhere that ground was like a large metal mass so they connected one end of a wire to the equipment chassis and the other end to one of those large 20 drawers metal roll about (on rubber wheels) tool chests you always see motor heads using. I came in to help out on a problem and I said what exactly are you doing that for, and the guy told me the story about a large metal mass. Well, I said it was good there was no short circuit to the chassis of their crypto gear because whomever touched it would have been the return path to trip the circuit breaker and probably might not feel too good afterwards.
There is a lot of misinformation out there about grounds among folks who know just enough to be dangerous....literally.
It reminds me of when I was visiting an electrical shop that repaired cryptographic electronics gear and some one there had read somewhere that ground was like a large metal mass so they connected one end of a wire to the equipment chassis and the other end to one of those large 20 drawers metal roll about (on rubber wheels) tool chests you always see motor heads using. I came in to help out on a problem and I said what exactly are you doing that for, and the guy told me the story about a large metal mass. Well, I said it was good there was no short circuit to the chassis of their crypto gear because whomever touched it would have been the return path to trip the circuit breaker and probably might not feel too good afterwards.
There is a lot of misinformation out there about grounds among folks who know just enough to be dangerous....literally.