Mentally correcting people's pronunciation all the time.
This like an OCD thing that I do ...
Whenever people are talking (to me, to others, in a movie; it doesn't matter) I compulsively correct (in my head) any pronunciation that I'm unhappy with. Sometimes I'm so bothered by it that I literally repeat their sentence out loud to say it correctly, without explaining myself. I just interrupt them out of nowhere. It's really embarassing. If someone's pronunciation is good then it's totally fine, but if they have bad words with every single sentence then I can't even follow the conversation because my brain is going insane, correcting everything they mispronounce in my head.
I'm extremely specific about it too. An example off this page: "repetitive": if someone pronounced it "repet-uh-tive", I'd need to repeat that in my head with the correct "i" syllable.
I know it's totally crazy but I get really distracted by this.