A cat named Leon belonging to a woman in Shizuoka can apparently differentiate between several very similar sounding commands. Leon will eat when given the owner says "yoshi," but not "yoshiko" or any similar words. He also will sit or go to his little cat house on command.
It's really impressive that she can make Leon wait like that. I know from experience that keeping a hungry cat from eating is a losing battle.
[via Japan Probe]