I don't go to school anymore, but my GPA was 3.8 and I didn't have a school lunch my junior and senior years. I took summer school so that I could get out of school early during the regular school year.
I had a 4.0 in partying and a c average in everything else all I ate was hot rolls and chocolate milk
I take my own lunch, and I don't know my GPA, but I'm almost straight A's, with an exception of Maths and HPE, which I'm on a B+ in both, so I guess my GPA would be relatively high.