Do you have that one person you work with that you just can't stand for whatever reason?

I've been having a tough time with this one project at work and been falling behind because we hired a junior dev and 2 inexperienced freelancers. So to help me out my boss let me use his office for the day to avoid all of the noise.

I had been under the impression lately that I didn't like my job due to the constant context switching and being isolated for the day was a really nice refresher.

Then the project manager starts harassing me at 430pm saying the client is now expecting something deployed in the morning with no warning or requirements. Way to set client expectations.

That one moment made me realize that the context switching wasn't what I disliked about my work. It's that one person. They're so bad at what they do that it makes my job so much harder.