I've had a moment or moments during the Christmas season when I wanted to yell or punch someone while Christmas shopping or trying to park. I assure you that I would never punch a complete stranger, but I did something really horrendous a few years back when I was taken over by the Christmas parking rage.
My sister and I were in a huge line to park and this massive boat of a car comes along the side of us while we were waiting for the car to get out of our space. I was not about to let them get away with sneaking in and stealing our coveted parking space. I put my face against the window and put my fist up with a growl and then saw who was driving the big boat... a little old lady that could barely see above the staring wheel! From the look on her face, I saw that she was scared out of her mind! She most likely had no clue how parking lines worked. lol!
I posted this link since I couldn't get the actual video on here. Just watch out for other stuff that may pop up after the video is done, =).
GO Here to see serious Parking Rage