"tl;dr what you described is possible, I guess, but so incredibly unlikely it's not even worth thinking about." How would you rate it, in terms of "worth think

"tl;dr what you described is possible, I guess, but so incredibly unlikely it's not even worth thinking about." How would you rate it, in terms of "worth thinking about", relative to USB keys picked up off of the ground to infect industrial controllers to make centrifuges wiggle the wrong way ? Where would you stick that in, you know, in your "worth thinking about it" spectrum ? Just curious.