Ask HN: Did you or someone you know drop out of college to work on a startup?

I am currently a senior in college, and I will be graduating next January. I love to learn, but I hate school and the process of grading, and how some of our classes we are taught to pass a test. I think it is a waste of time. I have a couple solid ideas for start-ups that I could pursue, but school is keeping me from diving deeper into the ideas. So if you have dropped out to pursue a start-up or know someone that has, what was your/their experience like?

tl;dr - I am a technical business student who could use some advice on college or start-ups