Just hook an open on removal of power time delay relay onto the on/off switch of the equipment.
In my many years I have come to a conclusion that one useless man is a shame, two is a law firm, and three or more is a congress. John Adams
The whole aim of practical politics is to keep the populace alarmed (and hence clamorous to be led to safety) by menacing it with an endless series of hobgoblins, all of them imaginary. H. L. Mencken
"Life's tough......It's even tougher if you're stupid."
-John Wayne
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