I'm not completely convinced that Jack Russells are dogs, per se . . . they remind me greatly of the wind-up-toy demographic.
I agree, this is the first one and the last we will ever have. Were getting to old. We took him to obedience classes which were called "Good Manners Class" and he attacked the instructor!
I have been posting as I have been reading, but as the former owner of nothing but "big dogs", I can tell you that a Jack Russell is not just a dog per se, they are much more. Gracie has cured me of ever having a "big dog" again. That being said, they are rather hyper-active and need alot of attention but if you want a big dog in little dog skin, get a Jack Russell. They are extremely loyal and tough.