You know how the only choices you can pick in the games are "Yes" and "No"? Well that was addressed in FireRed and LeafGreen! Some guy on Two Island will ask where you come from, and of course your only choices will be Yes and No. If you select Yes he will say, "Yes? Yes Town? I've never heard of that place." If you select No he will say, "No, really, you have to come from somewhere."
I don't recall that NPC you meantioned, but I do recall there are instances where you are asked to input actual words like with that guy who asks you of your "Profile". Too bad you can't input your own words as the selection is already setup I'd liked it if I could say something like, "I eat Pokemans", or "Ash is Gay" or "Pokemon is effin' lame" & other more vulgar remarks LOL!
LMAO! I just remembered the "What's in now?" people in Pokemon Ruby/Sapphire/Emerald! It would even be more hilarious if you could do that there too! "Hey what's the in thing in your town now?" "Eating Poop" "Yeah! I know that Eating Poop is the coolest!" "I've got Eating Poop dolls, Eating Poop Magazines, Eating Poop T-Shirts & I'm not gonna share" EPIC WIN!!!