Not sure if she is JRT or Rat Terrier. Sweetie is a very smart dog - she would make a great agility dog. She has lots of energy, gets along great with all dogs - any size. She is potty trained. You would only want to consider adopting Sweeite if you have time to exercise her and keep her mind occupied or have another very active dog that she can play with. She would not be a good dog to leave home for 8 hours + a day. Sweetie is about 1 year old.