Pavlovian

Nine times out of ten, when you give Arthur a biscuit, he will run to the living room rug before chowing down. His paws must be touching expensive wool, apparently, to fully enjoy a tasty treat.

And sometimes, if it's a particularly tasty treat, or he happens to be particularly hungry, he will drool in anticipation of the eating (with the treat in his mouth), all the way there. If you look closely in this picture, you can see the beeline of doggie saliva from the kitchen to the carpet.

Classy.