The EPA has a list of requirements that a bait station must meet in order to be classified as “tamper resistant”. This means that the bait station must be an unbreakable black plastic box, although some may vary in color, with a locking lid. It must be strong enough to prohibit entry or destruction by dogs and children under the age of six years of old, by using their hands, feet, paws, or objects commonly found in the environment (sticks, stones, broken glass, etc.) The type of bait stations that we used are classified as Tier 1. https://www.epa.gov/rodenticides/choosing-bait-station-product-household-use. As with any animal, there are always exceptions to the rule when it comes to pets.