We have a ton of Javalinas on the ranch and have only had one incident and yes it involved a ranch hands dog. Dogs are a natural enemy to a Javalina just like yote’s or bob cats. 2 boar Javalinas killed about a 75 lb pit bull the ranch hand had. Don’t go walking your dogs in Javalina country! Not only will they kill your dog, they’ll eat it too. They are lightining fast and have long sharp teeth. They don’t hook like a hog will, they bite and shake.
When I was young and not packing, I was treed by a huge boar.