For the uninvited squirrel. Lithe as an acrobat, quiet as a leaf, round-bellied as a stone Buddha, he arrives in a distraction and is gone as quickly as starlight. No one announced him, but there he is at the buffet, bullying your guests and scarfing up the canapés. The hodgepodge hungry wait their turn while he gorges on prosciutto and melon. Turning to the meatballs he catches your eye and freezes. But what are you going to do? He’s so damn cute. Call the waiter: he’ll bring more.