Before Matt gets home, Mabel droops on the floor. She wilts like a delicate flower next to the front door, rolling her eyes and perking her ears at the sound of every car.
But as soon as Matt walks through the door, she squiggles and figure-8's all over the floor. Note the blurry entire-behind-wagging. We refer to this as 'helicopter tail.'
But just as soon as he is revered, he is forgotten. Mabels spots a squirrel on the tree outside and errupts into the loudest, shrillest, screamiest schnauzer barking. Ever.