When my coworker doesn't want to believe his code is inconsistent, yet he changes the syntax for commenting 3 times over 10 lines.

I am part of a Slack group with dev friends all a lot better than I am. So I write my problem there. After they're done (playfully) mocking me, I am so frustrated that I usually find a perfectly obvious solution when I look back at my thing.
Or I use them as digital rubber humans.