A business method includes a system for providing notification to a designated pet care provider to ensure that care will be provided to a subscriber’s pets, animals, or livestock in the event the subscriber is unable to care for hisher pets due to an injury, hospitalization, death or unexpected delay. The centering ring may comprise plastic, and may be fiber-reinforced. The image generating device and method detect static text angles from consecutive frames and use a 3D-static text filter to recover correct motion vector fields. The plug has retractable nubs on its exterior which are biased to engage grooves in the receptacle to retain the plug in the receptacle by a spring-like backing plate attached to the nub disposed in the interior of the plug near the walls of the slidable housing.