The present invention provides a bait station and method for securing it using a receptacle for holding a weight to weight a bait enclosure and by stakes formed as a unitary part of the enclosure for securing the enclosure. The machine is relatively portable, for example, it can be mounted on a palate, and can be used at any location having an adequate electrical supply. The video output apparatus further includes a selection unit, which selects one of the video signal outputted by said video output unit and the mute signal generated by said mute signal generation unit and outputs the selected signal, and a control unit, which causes the selection unit to select the mute signal in a period including the switch performed by the video output unit. The gate of each of the decode transistors is connected to one signal line of first and second signal lines transmitting the corresponding display signal bits and inverted signals of the corresponding display signal bits, respectively. The apparatus-side ground terminal includes a portion projecting laterally from the uniform diameter portion from an end of the uniform diameter portion toward a reading member base and an extended portion at the end of the uniform diameter portion, covered with the tapered portion. In certain embodiments, the apparatus includes a tubular cavity to provide a recessed location of the needle cannula for preventing accidental needle injuries.