You know someone is having a mental breakdown when.

You mute a certain player because they're just being toxic all together, spamming missing pings, stating this and that, and they tell your fellow teammates to tell you to "get laid" and "spam missing pings on him to make him more upset". No, I just don't like seeing that shit on my screen, sorry that I didn't give you your preferred role, so your only way of acting on it is to have a pissy fit. Jesus, the minds of some people.