I used to live next a mostly abandoned public university building. The building changed hands to some private association which would rent the building out for private events on weekends. So this meant on Friday and Saturday nights, people would rent out this big space and put a DJ blasting deep bass all night, usually through 4am. There's a quiet law in the city after 10pm!

It was literally driving me insane, the bass wasn't audible outside but shook the foundation of the building and piped directly into my fucking room. Impossible to sleep when a 90 BPM beat is playing for hours, your heart just doesn't relax. I emailed the association every time it happened saying it's affecting my sleep. They answered once or twice saying they "asked the guests to turn it down next time" but nothing changed. Shame on them, making money from leasing a space not designed with sound isolation in mind in the middle of several apartment blocks. I eventually moved out because of it but goddamn, so enraging