I work for making D the best programming language in the world. I've always been doing things like that since my first job. I've always liked the challenge, especially when people tell me I can't do that.
I selected a college specifically to prepare for the kind of things I wanted to do as a career, and selected classes in the service of that. I once told my dad that I was never bored for a moment in college.
Vacations dull pretty quickly.
Lying around doing nothing is my notion of hell.