I used to think that Nidoking would evolve into a Nidoran female and continue the Nidoran evolution that way. My dad, who didn't know a thing about Pokemon, was the one to correct me.
Also, I used to only play the games with a single Pokemon as the attacker, and every other Pokemon in my team were like... levels 2 to 3 or something. Some people do that, to play the games quickly I guess, but I consider that stupid of me back then. I never did attempt an actual team at a young age.