My upstairs neighbors are arguing (have been, in the evenings at least, for a few days now). I can't hear everything that's being said loudly, but I've heard enough f-bombs, plus a few instances of "Go ahead! Call the cops right fucking now!" and threats to get lawyers, to know that it's serious. I'm keeping an ear cocked for sounds of violence and/or actual threats, at which point I'll call 911, but that's it.
I haven't been in this sort of situation before and I'm not sure if I should do anything else. Advice?
Relatedly, I'm rather proud of myself for not reacting more strongly to their arguing. Time was, I'd be cringing or maybe crying by this point. (This was a physiological reaction to being in the same vicinity as someone yelling or loudly arguing, even if I wasn't involved; dating from when I was very young - under 6 - and Mom raged at me.) I'm still not entirely at ease, though.