Rat Terrier Question

I adopted a five year old rat terrier chihuahua mix (had DNA test done) out of a shelter six months ago and had the same issues. We've reduced dog aggression issues with exercise and more dog socialization: 20 min am walk and 40 min evening walk and a couple of days a week at a dog day camp all day to tire him out and keep him socialized. He is better with most dogs now on our walks but we still cross the street if needed. I found my dog snaps on the leash because he is protecting me, but can be friendly with other small dogs dogs in a secure, supervised play area when he is loose. Good Luck with your doggie. :)

We had a rescued rat terrier. The first year was a true test of my patience. The best thing for walking I found was called a "gentle leader." Whenever she would do anything not acceptable...snapping at other dogs, etc. a good pull of the gentle leader, and she would correct the behavior. That being said, she turned out to be such a great, loyal dog. We loved her. She recently just died. Miss her soooo much! Rat terriers are not an easy dog to train, and they keep their puppy-hood for quite a few years.