Thank you for your comments. I have very little background on my bouncy boy, just that he was rescued from hunters shortly before I adopted him. I was told that his estimated age was one year but as he has grown 6cm taller in the year Ive had him its possible he was younger. So yes, the puppy excuse could apply. However, I work in rescue, training pups to get them ready for adoption and they learn fast that calm is good. He gets all the exercise he wants. Walks are exciting for both my dogs and they love to sniff everything. They also, two to three times a day, wrestle and chase each other around the garden (to the extent that I have a racetrack worn into my flower beds and lawn) until they are both seriously out of breath. I play ball with them at home after their walks, again until they are tired. Both dogs sleep for an equal amount of time, in fact the bouncy boy might sleep a bit more! I have consulted a behaviorist and a trainer, both of whom feel that I am doing everything right. I had the vet check bouncy boy soon after I got him due to his clumsiness and bumping into things but nothing wrong was found. No, I would not return him. Like all of my rescues Ive had, hes my forever child. Hes a happy boy and very fond of me and his greyhound brother. Besides, the number of dogs rescued here so far outnumbers the number adopted, that returning him would be immoral to me. So, I shall continue to give him more and more training and exercise and hope for the best. Hopefully Ill survive this marathon!!! I must admit I was hoping to get a response from someone who had owned and tamed a similar lunatic. As for dog racing here, it is illegal but of course there are people who have no respect for the law. They seem to use Italian greyhounds for racing.