i myself am not a fan of folks blowing off school for any reason. It can work for some people. But most of the families that I see practice this have children with substandard to average grades to begin with. Not a rule, but just my observation.
I blew off hunting all thru my college years. It didn't kill me, and in fact helped me. I didn't hunt more than 2 times a year when in college. Now, I have the luxury of taking off weeks to hunt. I knew guys in college who would blow off midterms to hunt. They claim it didn't make a difference, but I personally know several who didn't make it thru. I won't say, hunting alone pushed them over the edge, but the overall attitude to education. Pay now or pay later.