Pearls Before Swine by Stephan Pastis for September 21, 2011
Goat: What are you doing, Rat? Rat: I have stumbled upon a form of communication that is so carefully encoded I can only assume it was accidentally dropped here by aliens. Message: dw i ddim yn gwybod. Ydw. Mae'n ddrwg gen i. Goat: That's Welsh. Rat: Do you suppose they come in peace?