If I could have a minor super power, volume control would be a pretty awesome one. Suddenly, people who drive down the street with their bass at levels that rattle people's windows would wonder why on earth their stereo won't go as loud as they want it to, no matter how hard they crank it. They might even push the dial so hard they break the thing.
The people who used to live across from me who would get home from work at 3am and decided that would be a great time to decompress accompanied by 5,000 decibels of death metal?* Suddenly it wouldn't go above easy listening levels.
My current rhythmically-disabled neighbor who has been practicing the same song on his electric bass, badly, at the same times of day every day for the past three weeks, and has now bought himself a drum set? I'm not sure about that one-- Carpal Tunnel, maybe. Actually, it's not so bad....he doesn't play for hours and hours, usually, and if I put on music I can drown him out for the most part.
* Yes, I asked them nicely not to do that. They accused me of "not respecting their schedule."