Oh, they know how to kill you- what they can’t figure out is who will operate the can opener when you’re gone.
Right!
So thats why some people stand in the line of sight between the cat and the electric can opener.
Put another way, it's plain old survival instinct kicking in, when opening the cat food, with the electric can opener, i.e., like covering the key pad as you enter your pin number for your debit card. (Do I really need to put a "/s," or will people just figure it out.) Ah what the hey, I'm covered the /s is there.