Hi, John. Those dispensers remind me of the doors to the stores in my neighborhood shopping centers. They open automatically if a person simply walks past, letting out the heat or a/c.

Bert, do you have tools in your home? Perhaps you could use a hacksaw or file to get rid of that point on the potato masher. Then everytime you look at it, you get a warm glow, thinking, "They tried to poke me, but I foiled them!"