Oh God yes. At my Calculus 3 midterm I borrowed a classmate's formula sheet. I returned it to him at the final exam. Because I hadn't attended a single class between the midterm and final.When I was in school, I was awful about going to class. My alarm would go off and I would keep hitting snooze up until the VERY last minute.... then it would take about two seconds to convince myself it wasn't that important to go, and go back to sleep.
In academic terms, I learned much more in high school than in college. Hey, in high school you get your lazy ass out of bed just in time to catch the bus in the morning. You've got 7 or 8 short classes a day, with gym and lunch to catch a break. You walk briskly between classes to show up before the bell and avoid detention. If you nod off or start talking in class the teacher yells at you. Since you're forced to be at class, you might as well pay attention and learn something, right?