Keep being you. Hard working and graceful. I have worked with many toxic coworkers. The one that jumps out at me - a situation almost 5 years ago. My beloved Princess Jasper had died and I was struggling to function. My coworker didn't speak to me for over a month! While others said they were sorry I was struggling, or sorry for my loss, or showed some sort of empathy, he ignored me. Blanked me. My suffering triggered something in him. I think he had the attitude of "it's only a dog, get a grip". And because I felt so vulnerable I allowed his actions to continue without standing up to him or doing anything about it. I deeply regret this now.