10x for identification of switch.
But, plz, stop the meowing about safety. I'm old-school engineer for more than "quarter of whole century", so I asked for solving the current eng.problem.
So let's stop spam. I don't need obsessive nannies - I'm not 5 years old. I need a clear answer to a clearly posed technical question. Nothing more. How many times I must describe that ALL SAFETY is OK?!