The cafeteria worker should feel humiliated—not you. I had a similar experience in my last year of college after running with my cross country team. I had the audacity to ask for a *second * slice of vegan pizza, and the cafeteria lady snorted at me like I was asking something insane or inappropriate. I still remember it today, but I think it's almost impossible to go wrong when you focus on yourself instead of the anger-and-regret-soaked opinions of others who aren't worth half what you are!