My biggest fear, is someone stealing my babies. They are so friendly and would go with anyone. I never leave them out of my sight, but it can happen in an eyeblink. My other fear is Dozer, he is so skittish around traffic, he gets so scared when the cars whizz by, so he tries to bolt across the street, he wants to get away from the cars, so he keeps pulling toward the road, I always have to make sure that I have a super right grip on his leash, I put the leash around my wrist, a d then wrap my hand around it. If he were ever to get me or someone walking him off guard and the leash would slip from my hand, he would bolt across the street and he would get hit by a car. I do also worry in then back of my mind about diseases or illnesses they can get, cancer, bloat, over heating, breathing difficulties, or ACL, but I don't dwell on those fears because even in ourselves, we don't have any guarantee that we won't go through life without an illness. I just try and give them the healthiest foods and treats, vet care, and preventative supplements to keep them healthy.