Judging pointlessly is a big one, too. Especially if unhelpful levels of ill emotions are all wrapped up with judging things to be bad, which is so common I think it's fair to call that most people's default state, unless they've taken effort to change that.

Fixing those (forming judgements when they serve no purpose; feeling excessive ill emotions over judgements) is about half of the self-improvement part of stoicism, as in "think the right way, and act the right way". It's most of the "think the right way" half.