A multiparameter acoustic signature inspection device and method are described for non-invasive inspection of containers. The base sheet includes an elastic member formed of a rubber-like elastic body and a light-reflective reinforcing member. In one embodiment, juxtaposed to the entrance are at least two diverter members angularly offset relative to each other to define a maze-like path to lead a target animal to the charge plates for electrocution while discouraging reversal of direction and protecting against direct access to the charge plates through the entrance opening by children, pets or non-target species. A beverage supply line can extend from the hot water reservoir to a beverage dispensing unit, which can be coupled to the faucet or mounted on the faucet deck.