When it is known that chocolate can be deadly to dogs, why would anyone post a picture showing a dog playfully chewing on one corner of a chocolate bar with a human? No doubt someone else will see it and actually think that it is okay to feed their dog chocolate.

actually there are chocolates that are not containing the harmful chemical (theobromine) that could harm the dogs. If the chocolate won't have this chemical then your dog would be the happiest dog.