For what it's worth, calling the cops on my crazy upstairs neighbor who went on screaming matches with herself actually worked. I called 911 in the guise that I was worried that she would kill herself or something. They showed up and knocked on her door for a good 15 minutes. Her dogs went ballistic, she didn't make a sound. Eventually I went upstairs to show my face, and a rookie pointed a gun at me. Then the lady answered in a sweet and calm voice and let the cops in, and I slipped away before she could see me and identify me.
I have no idea what they said to her, but I did not hear her anymore. Well, I actually did last weekend, but I also heard another woman calling her crazy. Every morning she seems to drop something heavy, though, and it has waken me up. Her dogs also go crazy when she's about to take them out for a walk, but they are pretty tame. I like dogs, but I've always been a cat person, see, and I utterly dislike people who don't train their dogs to behave. Honestly, I don't know they can live with so much noise. I did know about something worse: the neighbors of an office where I used to work still have, to this day, a big guacamayo who spends the whole day either squawking or going "HOLA!" to passerby. It is ridiculous. Whatever. The point is, excited dogs and clumsiness I can deal with. Way to go, police!
And to add to the poop discussion: I was recently walking by when I see a middle age woman being pulled around like a rag doll by her Bernese Mountain Dog. She fell to the ground and got hit bad on her shoulder with a treeless maceta. Since my best mate had recently got into an accident in the street, I decided I needed to help. When I got close, the damn dog tried to attack me. I assume she was "defending" her owner, right after knocking her down and leaving her lying in the gutter under a parked car. Seriously, what a brute of a beast. Cats don't do that, you know? Anyways. She ended up being taken by an ambulance on a wheelchair and DID NOT pick up the dog's turd.