The people who live above us are mysterious. They are always awake, for one thing. They have kids that seem to run in circles all night, and that usually ends in yelling, (Presumably because it interferes with the anvil juggling,and clog dancing that the adults seem by the sound to be devoted to.)
Afternoons are evenly divided between ferocious vomiting and noisy sex. Also constant bathing. (With a routine like that, you would have to.) The children yell in the bath.