Had a cokehead who liked to scream at his kids at the top of his lungs most of the day and well past 10 oclock each night while said kids ran around the house screaming at the top of THEIR lungs and bangin their head against the walls, throwing things, etc... Enough to make me swear with god as my witness my next home would be a single.
I showed up on his doorstep one night and calmly explained the distress the situation was causing and that I would be dialing 911 soon if it didn't stop. I suspect he had drugs in the house and know for a fact he was fighting not to loose his kids to child services (you'd be surprised what you can find out about peoples' lives when they scream all the time rather than talk). He made some weak excuse about how the one kid's therapist said it was best to just let him act out his anger issues to work through them but he'd try to control it. But he really calmed things down in a hurry to avoid unwanted law enforcement attention. It got better for awhile then went back to the same again. Cops showed up at the house from time to time for noise complaints among other things. I ended up calling at least once. He was led away in handcuffs for unspecified violations and/or warrants not too long after. Then the rest of his cokehead family ransacked the rented house for whatever materials could be sold for drugs (including the central air unit) and left.
I now have to get up at 4:45 every morning. Had that been the case then I don't think I would have been nearly as patient about everything except I was worried they would screw with my shit if I was an *** about it.