I fucked around when I was like 18 and 19 and got kicked out of community college, or academically dismissed. Basically I wasted a ton of my parents money by registering, going for a week, and then not dropping the classes. Long story short, the damage it did to my GPA came back to bite me in the ass, and although I graduated with honors from a 4 year school later on, I just got a rejection letter from a graduate program I applied to. Pretty bummed out, nobody likes rejection.