We have recently noticed that Bentley is going deaf. He's always been a dog with selective hearing ("Come?...Nah!") so we only began to notice it when I started taking both Lexi and Enzo to agility class. When I'd come home, Bentley would be asleep on the couch despite the noise of the garage door, our security system being disarmed, and me going upstairs. (He has clearly been relying on the younger dogs to 'tell' him when we are home and it's time to wake up and bark!) It makes me really sad! He is only 10 years old (turned 10 in July). This seems so soon! I know that just like humans it can happen at any time as we get older, but I worry that this means something else is going on. The dogs are going in next month for their yearly (including a full blood panel) so of course I'll be mentioning it to the vet, but I'm curious...have any of your shelties started going deaf this soon?