I have two Corgis, Bertie and Ethel. Bertie is nearly 5, Ethel is 16 months. Twice in the past two months, Ethel has gotten into one of those flashy battles with another (small) dog (lot of noise and teeth baring but no blood spilled). Both times, I seem to have been the cause. In the first instance, Ethel and the other pup were playing, chasing, wrestling just fine. I was sitting on the couch and at one point the other pup jumped on the couch with me, and Ethel followed. With me in the middle, the fight broke out. The second time, a friend with 2 dogs who have been over and played with both Bertie and Ethel many times, took me out to dinner. When we got back, we let the dogs out to play together (my friend had brought hers in her car; mine were in my house, and we let them all out in my back yard). Of course, since I had been out, my guys wanted to give me an effusive greeting -- but my friend's smaller dog wanted to play, and so interfered with Ethel's greeting to me. She pounced on Ethel, who was jumping on me, and Ethel lit into her, the vicious sounds, teeth baring, the whole bit. Again, no real biting or blood, just the flashy, noisy preliminary warning sort of fighting.
Clearly, I was the cause of this. It has not happened at any other time, and Bertie and Ethel have not gotten into any fights like this since Ethel came to live with us over a year ago. Bertie and Ethel get along well, we socialize with other people and dogs all the time, and at no other time has Ethel displayed this behavior. When we are out walking, and meet other dogs, she has a great time. In fact, my friend had been over earlier in the day, and the dogs had all played together well. It seemed to be because I'd been out and just got home, and Ethel was still in "greeting" mode that this latest instance occurred.
Obviously, there are things I can do to make sure I don't put Ethel in this position -- but are there any behavioral things I can do with Ethel to prevent this from occurring? I've worked with Ethel to keep her from being protective of her food, but how to I stop this?