I'm not sure if this would be the "worst" or nah, but something I can 't tolerate when someone acts a lot in my life. When they act like they know most things in my life cause it can make me mad anytime, I'm not a person who can behave the same way towards one person as another. I can control my emotions very well, but if someone tries to take away what I have kept tightly closed. I think I don't hesitate to silence them, hope my answer is able to fulfill your question.