I was a Junior in high school, the year was 1993. 2 of Borland's Tech Support representatives in the C++ group, Jeff Peters and Tom Orci, offered to run a class on C programming for a few interested high school students. We would go to Borland after school on Wednesday (IIRC) evenings and they would teach a class on C programming.
Well, back in the day, the tech support department was a fertile ground for software hacking of all types and they were a Beta site for id's DOOM. I remember sitting down and playing 4 player IPX networked DOOM, it was so scary and amazing!
One of the guys there was actually hacking together a map editor while it was in Beta, he reverse engineered the WAD format and built the first viable 3rd party map editor for DOOM.
I recall those Wednesday evenings with great fondness, I made several good friendships that lasted for years after that, I learned how to program in C on DOS with Turbo C++, and the experience cemented my path in life, giving me skills and a vision of what I wanted to do. Now, almost 23 years later, I owe much of my success to those early formative years in high school.