Nicholas Alexander Buckendorf You do your homework In your head.
   You don't need no stinkin' paper to prove it to someone else :D
   Teachers used to get mad because I didn't "show my work",
   ESPECIALLY in elementary + middle school - and I'd be like, "I
   got the answer right, yes?" and I genuinely didn't understand
   WHY I had to show my work. I had the answer. I didn't need to
   teach the teacher how I did it. At least that's how I thought
   back then. Maybe I haven't changed :) "