You know I am sure there is a list out there of foods that are bad for humans, and they would include chocolate, cake, chips, meat, alcohol and all the other things we eat... I have a vet friend who told me that she sees more dogs 'poisoned' by pizza than by chocolate (in fact she has never seen a dog sick from eating chocolate, because most people know not to give them a bucket-full of the stuff, but the corner of your chocolate biscuit going to your dog will NOT do any harm!) My dogs would forage in our orchard and eat apples - peaches and nectarines. In the vegie garden strawberries were a favourite. My sister's dog once found a pile of fresh horse manure - she ate half and rolled in the other half. It was fatal - she died 10 years later...