I’m not an electrician, so ?I don’t usually get too involved in answering questions best left to that profession. But … it is an interesting thought. It would seem that so long as the amps running through the switch doesn’t exceed the ratings of the connected wire and the switch, the first switch in line cuts the rest off, creating no problem from that point on. Switching the rest of them on or off should and would do nothing as they are no longer passing electricity, which is reasonable to assume – if you like that word.

Perhaps someone or electrician can know of some other reason to avoid the situation.

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Yes, you really have to find out the MAKE and MODEL to get good answers. There IS more than one machine made.