It is normal for dogs to get into a fight with another dog, maybe for one reason or another. Have you experienced your dog being badly injured as a result of fighting another dog? What did you do at that particular point?
Nah, I haven't experienced that. I have seen many videos of injured dogs but mine hasn't gotten injured by fight. He always stay inside the house unless I am taking him for a walk.
Fortunately, I've never been in a fight with anyone except from verbal confrontation that I do with some people online when they talk stupid. I'm not a fan of physical fighting.
Why would I allow my dog to be fighting dogs on the streets that I don't even know if they had their complete vaccines? I will never allow that to happen, it's why my dog is on leash all the time.