I learned programming on that calculator. I learned programming because of that calculator. I owe so much to that calculator.
Same.
I distinctly remember my teachers having a debate around whether or not the functions I had programmed into my calculator were "cheating". On one hand, it was a tool and notes that I had access to my peers did not. On the other hand, I had created those tools myself, and if school was supposed to train me for the real world, wouldn't I be able to use the tools I created in the real world?
There are many of us, I make a living today because my dad brought home a Ti-83 Plus and I kept messing with the "PGRM" menu
Same. I hid custom calculators behind game levels so my teacher couldn't find them.