I've been on both sides of this issue. Back in HS, I was attacked by a dog - from above! I was on the lower level of a road under construction and the dog was on the top level and jumped, latched onto my leg and wouldn't let go. Never saw that one coming! I've also had my dog(s) hit by cars in front of my house. Dogs that I thought never went into the road. My Cairn decided to hit the streets after I went to work (night shift). I never knew that he climbed the fence to get out. Later, I found out that he did it regularly. My Keeshond was with me in the front yard and a girl walked by. She looked very much like my wife, who had just gone inside to get some tea. The girl bent down and called to the dog - who thinking it was my wife - ran to her. Then the dumb B crossed to the other side of the street and the dog followed her - right in front of a VW van. Lastly, our blind neighbor left our gate open and our Black Lab walked right out and was hit by a Lexus. Fortunately, her collar caught on the bumper and she wasn't run over. She did lose a tooth and punctured a lung. This was over A 25+ year period and fortunately all 3 dogs survived (with some serious medical bills) and went on to lead long, healthy lives. But I learned that, no matter how well trained, I can never trust a dog to always stay in his yard. A shame really, but a reality nonetheless.
Now CATS are a different story. They're much smarter...
