When I was young (8 or 9 I think) I remember having an audio cassette recorder that I would use to record my cat's meows. I would then play back the meows to the cat later and write down his reactions. The idea being that I would figure out what the different meows meant to the cat so that I could speak (and listen to) cat. As you might imagine this didn't work so well.
Any other people out there ever try to speak cat?