Brick shoes
Usually, in crime movies, when the main hero gets in trouble with some gangsters, they threaten to kill them with cement shoes. Which means throwing you into the ocean or a lake with a heavy object strapped to your body, basically drowning you. Sorry, we took this list in a dark direction for a moment there.
These people have nothing to do with organized crime, they were trying to show how much they did not appreciate their upstairs neighbors. They felt that they were being very loud and walking around their place with brick sandals. We didn’t know that was really a thing, but we guess anything is possible these days.