I would occasionally bury stuff in programs that shouldn't have been there. I was afraid that the teacher might look at my programs and if there was a functiona

I would occasionally bury stuff in programs that shouldn't have been there. I was afraid that the teacher might look at my programs and if there was a functional program, would realize what I was doing, so I'd usually have a code language that I could easily decipher but wouldn't be easily figured out by someone else. I probably gave my teachers too much credit, but the classes that could use calculators were usually taught by teachers who knew about programming the things.