I think I can relate. Sometimes, something small triggers me, and while I don't jump at people all physically abusive, I can end up expressing myself in a less-than-appreciable manner - essentially, I can be angry at someone or something, but end up transferring that anger to someone else, ... it's usually just "snapping" at them a bit, but sometimes it can be a bit more; I think to an extent, we all do this, but maybe some more than others. If someone makes an honest to God mistake (after-all, it happens) it can have more of an impact on me, causing me to react as though it were something more.