Day - if it helps, I often end up feeling exactly the same way...embarrassed, silly and foolish. After the incident is over I calm down almost immediately and realize how stupid and dangerous my reaction was...but I think I'm so terrified of idiot drivers and getting hurt that when someone endangers me, I lash out. Mostly from fear.

I've found that asking myself what my fiancee would think in any given situation has helped me keep my perspective and keep my cool.