Yeh, always known that about dogs and chocolate. Funny enough that of all the people I know who have dogs, and all the dogs we have had (5 in total),they have all had a craving for chocolate, yet not one dog, to the best of my knowledge has ever died from chocolate poisoning.
Many a time we have gone out and left such things as easter eggs in reach only to come home to find them scoffed.
We now keep chocolate out of reach.