I work with the general public.
I have spent the day smiling and engaging in banter with people I don't know about topics I couldn't care less about.
I have to listen politely and explain myself in a variety of ways over and over again as people fail to wait for me to finish speaking before critiquing what i have to say.
Am I a miserable bastard or does everyone find that 9 hours of false pleasantry leeches their very soul?