What’s a toxic trait that you have?

I get super annoyed at people who explain things poorly. When someone is trying to get a point across to me, and they’re making their point in a really ridiculous and tough-to-understand way but I eventually manage to make sense of what they were saying, I often can’t help but say “this would have gone a lot more smoothly if you had just explained X upfront”. It’s really not something I need to say and it just makes the other person feel dumb, and yet I still do it a lot…