I was out with our dog and cutting through our parking lot. I should have been more attentive but I had not realized that she had wrapped the leash around my ankles and when she saw another dog she bolted. I fell backwards and smacked my head on the pavement. I got a concussion out of that. I could not get up, vomited and had to lie there for about an hour as the ambulance had to come from another town. All our ambulances had been busy. Nowadays I pay closer attention to everything the dog does!