finally becoming an official member of the old fart club has taught me that life is too short.... there are just way too many bad and stupid drivers out there. I don't pretend to be a good driver as I'm sure I've also done plenty of bad and stupid things while driving.
I have only ONE goal when driving... getting to my destination or returning home in one piece. Along the way, I may or may not let someone cut or merge in front of me. If I feel that it can be done safely, I let them in... if not, well... they'll just have to live with it.