YES I've hit a dog before, MY OWN DOG![:@]! I was riding a Triumph 650 to and from work, he would sit on the corner, in the afternoon, and wait and listen for me. Then, as I would go up the hill, he'd run along side of me. One day, for who knows why, he decided to go from the left side to the right side of the bike. 2 words BUMP, BUMP, right over him. He was a medium sized dog, i hit the brakes AFTER going over him, he was laying on his side eyes wide open. I didn't know what to do, so, i just slowly carefully felt him all over and blew a little breath into his muzzel. He started moving his eyes, and moving around a little, so, i picked him up, carried him home. He was fine, BUT, when i started the old Triumph up after that, he was GONE, to the back yard, where he'd stand and shake for a while. PTSD i guess. No, i didn't go down, learned a good lesson, you can't trust even mans best friend.