I consider my time behind a bar my real education. Imagine a wide eyed 22 year old from a pretty quiet area thrown behind a bar with a clientele ranging from Nobel laureates to homeless people taking a shower in the bar toilet. You learn to get along with and enjoy all sorts of people and take them for what they are. You learn to deal with people that love you and people that hate you with the passion of seven suns. You learn to handle people at their best and their worst. You learn to convince belligerent people to do something they don't want. You develop empathy and see people with lifestyles completely different than your own. You learn to have a conversation with anyone and I mean anyone. There's so much more but that's a start