Our local Stop & Shop supermarkets deployed robots similar to this about a year and a half ago, although all they do as far as I know is complain when they find

Our local Stop & Shop supermarkets deployed robots similar to this about a year and a half ago, although all they do as far as I know is complain when they find a mess somewhere. I found them irrationally annoying. I'm not sure exactly why. But I've also noticed that lately they mostly sit in the corner and don't actually patrol any longer.