I've had jobs where I've had to put up with stupid customers and stupid management. Retail, waiter, computer lab assistant, and tutor are all titles which could be put u on my résumé which caused me to lose hope in humanity. After dealing with borderline retards in all those jobs I found something where I don't have to deal with customers. I'm now a happy stagehand, where we rarely see clients, and where fuck you means good morning.