There's this old PC game (back in the MS-DOS era!) called Mario's Game Gallery. (This was actually the first or second game with Charles Martinet voicing Mario, before Super Mario 64.) It's actually pretty fun if you're a kid. Waste of time for adults, though. Anyway, one of the games it had was Go Fish. Whenever Mario asked for a card you didn't have, the game would say "Mario, go fish!" in this... really high-pitched, annoying, childish voice. (
Example.)
And it sounded like my voice.Seriously. When I showed the game to my friends, people actually thought I somehow inserted my voice into the game. It wasn't until my late teens that my voice developed enough that it didn't sound like me anymore.