Back when i was younger i would cheat in almost every game i played, ( using game shark , Action Replay, etc). But it was dumb because i would cheat but not cheat all the way (xD) just enough to make the game play different, set written rules that adapted to the cheats. That inspired me to make a game, so i started learning game development.
I can't remember the game i originally set out to make though =( , so now i just make games in the hopes of stumbling across that one original game i though of. That inspires me.