Actually, I pass his house every day to and from work, and its not difficult to notice.
He and another neighbor really got into it in late September. The guy in question is so loud when he talks, it is hard not to notice when he's actually yelling.
Then there was the time when he "helped" another neighbor of mine by wiring their cable television into a 120V AC line. It nearly started a house fire. I'm still trying to figure out how he managed that. I mean, the cabling doesn't even LOOK the same.