This morning, I went for a stupidly early walk with the boys. I took them to a park close to the house that has a great fenced off area that's great for off-leash training. My boys were doing so well. But all of a sudden, a little Jack Russell appears from nowhere. So, quick thinking, to distract my boys, I threw a ball in the other direction. They both chased it but Skip turned back half way (out of defeat, I think as Dexter is pretty fast)... The little JRT went straight over to Skip and when I called him back, Skip started running straight back to me. The little JRT was having none of it and ran at Skip, grabbing his back leg Skip fell flat, obviously losing balance and I started to run over as the JRT started ragging Skip's leg, hackles up and looked like he wanted a good fight. Before I could get there though, Dexter got to them both, barrelled in to the JRT and cause him to let go of Skip's leg... The JRT then ran for Dexter barking and snapping. Dexter didn't bother, he ran in a huge circle, distracting the smaller dog so I could get to Skip. By the time I got to Skip, he was standing again looking a little sheepish and let me check him over. His leg was bleeding but he was putting weight on it and the little JRT was still trying to attack Dexter. Dexter looked like he had everything under control and the chubby JRT was struggling to keep up. It was at that point, the JRT's owner appeared. Leash in hand and out of breath. Dexter ran straight to the man and he was able to grab the small, chubby dog (getting bit himself). He then came over. He was so apologetic and explained that his dog is aggressive and escaped from the garden. He put the leash on his JRT, asked me if my dogs were okay. I told him that Skip had been attacked by his dog but that apart from a little blood, everything seemed okay. The man was distraught. He told me that he'd cover all vet costs and that they have a behaviourist coming to work with them on Monday. He seemed generally upset and actually very dog savvy (which is a rarity)... He knew his dog has issues and is working to get them fixed so I didn't give him a hard time. However, all this time, Dexter was standing between the JRT and Skip... Just staring at the dog in the man's arms and not budging. Looks like Dexter has Skip's back It was really nice to see the protective side of Dexter, paired with his herding instinct... Things could have been a lot worse if Dexter hadn't intervened especially since the JRT owner said his dog is both human and dog aggressive... Do your dog's have each other's back?