My first hack was in typing class in 6th grade (1990?). They had the PCs (running DOS) locked down so you could only run the designated typing programs, but one of the programs let you open a text file, and in the root of C: I found a file with the passwords for admins to go straight to the DOS prompt. Turned out there were all sorts of games installed as well, I was the class hero. Ironically, I got terrible grades in that typing class even though I type over 100wpm now...