I adopted a Sheltie mix aged 5 just 2 years ago. He walks well on the leash, eats well, sits and gives a paw, likes his tummy rub and sleeps in his crate at night. He did suffer from anxiety disorder by peeing outside his crate when we went out for a couple of hours or so but that has been cured with medication from the Vet.
However, he will not play either with a ball or a squeeky toy and loves to go to sleep under the table. How do I get him to play and stay away from going under the table?