"Do the math. This is one meeting, and while you might pull off a meeting win when everyone’s calmed down, you’re spending the first 30 minutes of the meeting in ALL CAPS, and here’s the bad news: a majority of the team is having similar experiences. Most of the folks interacting with this person are spending their time trying to figure out how to keep this person from going ALL CAPS rather than actually getting work done.
After a time, this results in even more damage. People stop scheduling meetings with this person. They stop traveling to their part of the building and, again, I’m not talking about one or two people here, I’m talking about the majority of the team."