Negligence is more difficult to prove in cases where the dog was on a leash or not at large. The owner may have a special license for the aggressive dog, and if the dog bite occurred while you were on the owner’s property, the “One Bite Rule” will apply. This is when it is crucial that you work with an attorney with expertise in dog bite cases. Your dog attack lawyer will work diligently to prove a history of aggressive behavior so that you have the best chance of receiving compensation for what you have endured.