We've had our nearly 6-yr-old retired racer for four years, and we adore him. My husband and I are a 1-dog household, with no behavior issues with "Jack" (an alias) until today when he bit my husband rather viciously in the hand.
This happened when I was pointing out a small scrape Jack had gotten on his leg. Jack was lying on his mat and we accidentally leaned over him in our concern, which frightened him and he jumped up and bit down. We always avoid this action -- of looming over him when he's feeling vulnerable -- because we recognize it's a trigger for him, so we realized our mistake and backed off, and so did Jack. But what alarms us both is the degree of the reaction. Jack has snarled at us before -- more my husband than myself -- but he's never bitten us. I'm seeking guidance in how we respond.
Let me describe our response so far today: This happened on the porch, so after saying NO we left Jack on the porch and went inside to tend to my hubby's injuries. Mostly deep scrapes, not deep punctures, so not serious physically. We've agreed not to make eye contact with Jack for the time being, no treats, and while he's got plenty of water available, he's getting only kibble/water for awhile without the cooked chicken he usually gets. We'll let him in or out as he pleases, but minimal conversation or interaction with him. So far he’s skulking around acting guilty, but he’s quiet and calm. It rained today, so at one point I dried him off without incident.
Normally we shower him with affection, so we are fairly sure this social shunning will punish him effectively, as far as it goes. But that's my question: Is this punishment enough? Should we do more, or less, or different? Should we be hopeful this is a one-time thing, or worried it's a sign of worse to come? I've always trusted Jack completely, but like I said, my trust is shaken. We would value any guidance you can offer.
Jack is large, around 95 lbs, but he's in excellent health and sees a great vet, gets lots of exercise, and we can count several ribs so he's at a good weight for his size. He raced only three times, no serious injuries so far, somehow ended up in a half-way house, then was adopted previously by someone who crated him excessively (his hindquarters were bald when he first came to us), so while we did crate him in the beginning, we never insisted on it, and when he became reluctant to use it, we put it away. He's got plenty of beds and alone space, and often sleeps on his bed on our bedroom floor. We forbid only two places to Jack: our bed and the couch. Other than that, he's at home and never misbehaves in any way, never counter-surfs, steals things, anything... Until today. What would you do if Jack was your beloved hound? Thanking all who offer guidance in advance!