Contain the Party Food… The sites and smells of barbeques, grilled meats and picnic goodies are tempting to all of us but can be particularly harmful to dogs.  Summer menu selections usually contain one or many of the most toxic substances to pets including:  avocados, alcohol, onions/garlic, caffeine, grapes/raisins, milk/dairy products, macadamia nuts, chocolate, candy/gum…