Ask the Career Expert

I work in the dining hall at school. My supervisor is very crass and it makes me feel uncomfortable. He is only a few years older than me and yet he is immature and inappropriate in the work place. Should I say anything to him or someone else? Or should I just ask to switch to another dining hall?
During an interview for an internship I was asked "if you were an animal which would you be and why?" Any idea as to why this was an interview question? What's a good answer in the future?
If I don't include my GPA on my resume does it come off as a red flag about my less-than-perfect GPA?
Is it embarrassing to be interning after graduation? I have an unpaid internship as a college grad and the girl who is my immediate supervisor is the same age as me. This is so awkward. How do I treat her? Should I act any differently than a regular intern?
I'm about to negotiate a paycheck with my boss...what kind of things should I take into consideration when coming up with a number in my head? So far I've come up with rent, utilities, food, and extras.