Chocolate, or the kind of chocolate most people have laying around, isn't all that toxic to dogs...1 ounce per 1 pound of body weight for Milk chocolate, 1 ounce per 3 pounds of body weight for Semisweet chocolate, and 1 ounce per 9 pounds of body weight for Baker's chocolate are the dangerous amounts...not a huge worry unless you've got a tiny dog who can put down a lot of really rich food and you cook a lot of desserts.