At about 12:30 a.m., the Banging Brood next door started punching the wall. Drumming would be more accurate, actually.
I was already upset about something else, so I've had some bipolar insomnia going on. Quite irritated, I took a metal baseball bat around to the kids' window and banged on it. I didn't bang hard enough to do damage, but I sure got their attention.
Ah. It's 12:39 a.m., and they're starting up again.