I've rarely met a car salesman that doesn't seem shifty. Their sense of urgency and craftiness chaffs my transparent, honesty, straight-forward, bottom line up front personality. I am not fond of the god-complexed doctor that I come across every so often either. What job title seems to carry a certain common personality that irritates you. Of course, I know there are nice car salesman, and genuinely humble doctors, but my experiences with these two professions have me guarded.