The world is filled with all kinds of temperamental people. Everyone has their triggers, you'd have to be catatonic not to feel emotional chaos stir up inside you ever, even if you weren't to express it externally. It's a huge factor as to why stress is such a burden on the "civilized" world and why substances to numb yourself from those emotions is prevalent.

          Emotion is an integral part of the human grid work, the whole point of being human is to feel. Babies and children before they get programmed into the Adult mindset will cry when their sad or hurt, shout when they're angry and laugh when they're happy. They feel it all and give a shit about how it affects others, they don't filter anything. Somewhere along our journey into Adulthood we learnt to judge those emotions in others and in ourselves and because of this many of us don't express our emotions because it's "wrong" or we don't have the courage in ourselves to let it surface. Many others were never guided to deal with certain extremes of emotion and their emotional intelligence never evolved to a level of maturity to handle specific triggering situations.