Am I responsible for paying any vet bills, for a dog that was bitten by my dog four months ago?

Are you responsible for the injuries to another dog that your dog might cause? In almost all situations, yes. If your dog injures another dog, was the aggressor and was not responding in a natural way to that dog's provocation, you will be responsible for the reasonable vet bills incurred for the reasonable treatment for the injuries caused by your dog.  That doesn't mean that you must pay any and all amounts that a vet might charge, nor does it make you responsible for verifying what physical reasons there might be for the claimed problems that the dog is having now. The possibility that some other physical condition is causing this problem has increased because of the length of time since the biting incident. The dog owner should be paying for the care needed for conditions not caused by the bite. Making yourself responsible for taking the dog to the vet will create the impression that you are agreeing to pay any and all charges that might be incurred for the treatment - you may not be responsible for them all. I suggest that you promote the dog owner's taking the dog to the vet himself, and then providing you a copy of the vet's report on his examination, diagnosis and treatment along with a copy of the bill before you agree to pay anything.    If you have homeowner's insurance, or another non-auto policy of insurance which insures you against claims like this, you should make your insurance company aware of the claim and have the insurance company adjust the claim for you. That service is part of what you pay your premium for. Good luck! Brian Chase, BISNAR|CHASE, Personal Injury Attorneys. http://www.BestAttorney.comhttp://www.ProductDefectNews.com 800-956-0123.