any tips on how to avoid mortally wounding someone that infuriates you, but you have to periodically spend time with?
Very effective. In fact this year I've had to work with a person I couldn't stand at all. I spent a lot of time watching and listening. A plan slowly formed and then I got lucky. Everything synced up in such a way that I got him moved to another job and in essence a demotion. Terrible satisfying. I was happy and he was miserable, which made me happy.
As for my age, I'm not willing to divulge that information.