 and tuition was pretty expensive, living expenses were pretty expensive, and I wanted to have spending money because in the Marine Corps, I'd sort of gotten used to not worrying about money, and I really liked it. I liked not worrying about whether I'd be able to go out and have a beer with friends. And so I worked a lot, and I had jobs that I was all really lucky to have. They were rewarding and interesting, but it was hard. You end up working that much, you don't have as much time to spend on your studies, certainly don't have as much time to spend on sleeping.