I had quit school and feeling really lousy about my prospects - took a part time job as a counter clerk in a butcher shop Granville Island..(Vancouver) .1980 - a customer handed me a $20.00 tip and said "if you want to work in a shop like this..at the very least go back to school and be the butcher - what are you doing?"
I took a break and worked in a wine store helping with wine/scotch tasting events. Those same "suits" that treated me with respect at the law firm - treated me as if I had "deaf,dumb, useless" stamped on my forehead.
Some of the best advice ever was from a chef... "you have to know the difference between Professional and Personal / Friendly and Familiar ... to give good service"
I've a great respect for those who work in the food service industry.. I treat people very well because of my experiences..