Sadie lets out a little gasp as Frank scratches beneath her fox's chin. Well, two can play that game: she arches an eyebrow at her husband, then cards her fingers through the thick fur on his dog's shoulder and gives it a gentle - but pointed - tug.

"Clink," agrees her fox as he twists on his back into a boneless configuration, half on Frank's lap and half leaning against his dog, the tip of his fluffy tail tickling Sadie's knees. "It's a very nice sound."