On Mon Feb 21 09:32:52 PST 2011, BoucherParrish said:
AWwww! Stinky is adorable! He helps you pick up coins that your plants give out when they are happy but sometimes that's a big job and he gets sleepy. Chocolate wakes him up and gets him working. If you feed chocolate to your plants that are fully grown and "glowing", they give out coins faster than usual. Also, the chocolate doesn't actually fall from the sky but you earn them like coins when you are killing zombies. I don't think it happens the first time you play the game through but during subsequent trips through the levels.