I intentionally avoided becoming that at a prior job.
I was senior system administrator on a large team and burnout was beginning. I had written my letter of resignation but there was a holiday break. I spent the next several months pushing back a lot (as senior I could get away with it and used it for my team.) Good people began to leave. I took a two week vacation. Three days back and the stress was worse than ever. The straw that broke the camel’s back was two junior admins asking me questions and I had to bite my tongue: I was on the verge of becoming they toxic person and it would not end well for anyone involved.
My notice was two months. Senior management decided that they wanted to keep me. I asked my team what they needed to see fixed and promised anonymity: if they wanted to keep me the price was fixing that list of issues.
I’m still there and we’re all happier.