Definitely not my first rodeo for this one. I have been doing a better job of not hitting anything lately mainly because I love writing and I have jacked up my hand so much I can't write for too long before it hurts. My fiance handled it perfectly even though he was caught off guard. Usually when I get angry like this I leave the room or situation but sometimes I'm stuck outside for hours trying to cool off so I won't do anything I will regret when I go back inside.
I do know part of this is stress related. At my old job, the stress level was incredibly high and I can't even count the number of times I hit things or threw ****. At my new job, I've only gotten that angry once and it was because of an acute stressor that kept me from working at all. I ended up passing it off to someone else to do.