One toxic feedback behavior: martyr defense.
I'm very familiar with this, because it's one of my own failure modes.
I hate getting developmental feedback.
I fear that so much that when I see that I'm about to get feedback, I throw myself onto the pyre before someone else does.
That then leads the person who was about to give me feedback to say, "No, no, no, you're great! It's not that bad!"
Now we're in a bad state: everyone knows they have to walk on eggshells around me on that front, and also I didn't actually ever get the feedback.