Matrix was/still is passed out, taking up as much space on my bed as possible, and snoring. So I picked up back leg to shift him over a bit, and I noticed his paw pads have obvious "drag" marks on them. It made me so sad to think that his hips are so bad that he's already dragging his feet. He's only turning 7 years old in April. He still acts like a puppy (much to our annoyance), but his body can't really withstand it. Sigh....