Chocolate Pudding

Paula and Daniel had some chocolate pudding tonight. It seems to be tasty, but as always when things contain cocoa, they will not allow us dogs to taste. It is said cocoa contains a substance which is toxic for dogs. I have never really figured out whether this is true, or whether it is just something made up by humans to keep chcolate from us. Rumour has it, some dogs have eaten chocolate and not only survived, but having experienced no negative effects. I wonder what is true. On the other hand, there are many other tasty things in the world, so maybe we do not need chocolate. I hope so.