While watching the video below, in which no robots were harmed in spite of being kicked, think of some reasons for "Spot" the robo-dog made by Boston Dynamics.
 

Spot is a four-legged robot designed for indoor and outdoor operation. It is electrically powered and hydraulically actuated. Spot has a sensor head that helps it navigate and negotiate rough terrain. Spot weighs about 160 lbs.

I think "Spot" will eventually be a big hit for security purposes. In such a mode it would be equipped with a video camera, voice, heat-seeking ability, etc.

Robo-Dog as Animal Deterrent

We have a 1 acre property with huge gardens. Our property is close to a forest preserve. Deer are extremely problematic. They eat nearly everything unless I take other measures.