It's not really unethical but in that vein: I made a program on the TI83 that you could punch numbers into in order to get results on an electronics exam (this

It's not really unethical but in that vein: I made a program on the TI83 that you could punch numbers into in order to get results on an electronics exam (this was in high school). I made it for fun, not really to cheat or anything, but once other students found out about it they asked for copies of it. Within a day or two the whole class had a copy of this program. I didn't understand operator precedence, nor did I bother to test the program. Everyone used it in the exam and the whole class flunked due to BODMAS shenanigans.