I once lived below a guy whose 5-year-old son came to visit every weekend, and they would stomp and run all hours of the night. One time we went up there on a Friday at 10pm to tell them to quiet down, and the guy apologized and said that they were playing football. Umm... football? In an apartment? At 10pm? With a 5-year-old?
He and his girlfriend also had really loud, violent fights with lots of crashing and banging noises. Once, all the neighbors were so worried that we gathered in the hallway and decided to call the police.
I'm living in a college town now, and I seem to have done a good job finding an area of town where you don't find many college students. My complex is full of grad students, vet students, postdocs, young professors, and some older families. It's surrounded by other apartment complexes that are all similar. It's kinda near a shopping mall, so my bus tends to be full of college kids on Friday evenings, but other than that I hardly ever see them.
Well, except on campus, of course.