Haha, I almost got hit crossing an intersection the other day. Dude passed like a foot in front of me and honked so I kicked the side of the car as hard as I could.
Was praying that he would swing back around and get out of his car but they never do.
I live in Ireland so pretty much no chance of someone pulling a gun (or any weapon) for a stupid hot headed incident; mostly someone will give you the finger, tailgate or shout. Who cares.
However, similar to you I was crossing at traffic lights with the green man on when my son was 2 years old in a buggy. Some piece of shit tried to break the lights and came close to me and my son. I fucking lost it (I could care less if it was just me, but a child in a buggy at a pedeestrian crossing...). Kicked his door, ripped off wing mirror and tried to grab him (window was down) before he pulled away.
I rarely flip into a rage but something that threatens a vulnerable person (esp family/friend) needlessly instantly sets me off. Another incident that comes to mind is when some kids (well 3 teenagers) spat on my mom's car at a train crossing. I happened to be nearby, she called me and said she was scared - what I would have done if I had caught the little shits. They ran away but I still get pissed just thinking about that kind of thing.