Could work with simpler vermin, but smarter animals would surely learn that robot has no effective means of harming them (no way to bite or scratch, unlike a re

Could work with simpler vermin, but smarter animals would surely learn that robot has no effective means of harming them (no way to bite or scratch, unlike a real dog; maybe punching, like a horse?), and reclassify it from a threat to a nuisance.