This. Don't write emails angry (unless you are doing it solely for therapeutic purposes and will be immediately deleting it) and try to have at least one person look over important or emotional emails. My coworker and I did this for each other constantly. Then we were both emotionally invested in a shit storm and had no clue what to do. We had gotten so good at not writing an email angry / without being rewritten more objectively that we pretty much forced ourselves to ignore it for a full day and approach fresh the next day. We also had to stealthily avoid in-person contact with the other two guys in the office as well. I never realized how fucked and silly offices and jobs in general are.Whenever we need to call someone an asshole, ask someone a favor, ect, we work on drafts and proofread for each other.