I was in highschool (IGCSE) in 1994 and for the final computer studies project whereas everyone else made excel calculators and "Hello world" equivalents, I nerded out and built a full fledged inventory management system for the local Toyota dealership. My dad found someone in his office who knew Dbase-4 and autocad and spent many weekends with him learning the basics and developing my project. It turned out better than expected and the invigilator from the GCSE board told my school that I had plagiarised the code, that there was no way a 15yo would put that much effort into it. Well, I had to write & rewrite the code several times because of storage/hard drive issues back then and recited some of the code back to the invigilator orally! My CS teacher was in complete shock, poor chap! I'll never forget the poorly drawn autocad designs for some of the computer parts in my inventory system. Thank you John Walker.