The first sentence almost made me give up on the article. But the second one gave me hope :P
A very common and relatively harmless overcompensation is when you feel insecure but you play it too cocky.
I've known several guys like that! And age didn't cure them!
That was a strange cashier. Usually it's customers who are finicky and weird.
Counterattacking most assuredly happens when women criticize each other's looks! I always found it a strange reaction since the truth of a statement doesn't depend on how ugly the person who said it is.
From the things you listed, I think I'm most prone to venting. I don't exactly vent cos I just keep things to myself, but I definitely become less patient and my anger-fuse gets shorter.