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Penny: Great! A little insulting, but great. I'll be Koko. Sheldon: Not likely. Koko learned to understand over two thousand words, not one of which had anything to do with shoes.Episode: S03E10 - The Gorilla Experiment
Penny: Great! A little insulting, but great. I'll be Koko. Sheldon: Not likely. Koko learned to understand over two thousand words, not one of which had anything to do with shoes.