Potato chips, crackers and other snack foods that come in bags can be a delicious treat, but they can also be deadly for pets and wildlife. Since the residual crumbs and smells of food can linger inside bags, they are tempting to animals. In the trash, many animals will seek them out and stick their hands inside, which can deprive them of oxygen and cause them to suffocate. When you are done with your favorite snack foods, cut the bags open before you discard them. You'll be saving lives!