Max’s bunny

This bunny either has no skills or is an idiot, or both.  He will just appear a few feet away from us, nibbling his greens and looking quite content. Most of the time Max doesn’t see him because he shows up behind us and it’s ok, but he has tried to chase him a couple of times.   Now when he sees a bunny I say, “not a bunny” and for whatever reason, he believes me and moves on.