In addition to our digital video security system, we also have four dogs, each with various tooth patterns ready to deploy on any burglar who would be stupid enough to test them. However, we also have kids in our family and on occasion, they forget their house key. So, if a family member gets locked out of the house, we feed them "Kibble and Bits" ha..ha. It's a very unsuspecting item and with the dogs that we have, no one would think twice about what it is really used for.