Typos in published books. Though it’s involuntary. It’s a bit of an (undiagnosed) OCD kinda thing.

But also, consciously, how much my presence affects others. I hold doors for strangers, I make space on sidewalks, I try not to talk loudly in public, etc. It’s the people who don’t notice these things at all about themselves that really drive me nuts. Like people speaking loudly on a phone that’s on speaker. I hate that type of behavior.