A dog owner named Beth writes:
Dear Mr. Katz,
I have two cocker spaniels that are one year apart. The red and white female (Cassie)is almost two and spayed. The buff male (Peanut) is just one 1 years old and neutered. Peanut was rescued from a cocker shelter in October of 1999. He is incredibly devoted, a very good listener and quick learner. He is the ideal dog as he is very eager to please. Cassie on the other hand is the most independent and stubborn dog I have ever encountered (you've probably seen worse). She used to only listen to commands when she wanted but I have put a stop to that. I have had numerous problems with her dominant tendencies but have come a long way. She now views me as the alpha and only displays aggression when she is in pain - specifically when I brush her. She has been diagnosed with allergies, is on allergy shots and has bad skin. This is not my problem though as I think I can work through this one with the use of the training collar.
ADAM INTERJECTS: It's very difficult to correct pain-response aggression. It's more of a reaction than anything else. Use the muzzle and restrain the dog when you need to give her shots. Other times (just so that she doesn't build a negative association to the muzzle) put it on, take it off, and then give her a cookie. Do this at random times.
BETH CONTINUES: Cassie displays a lot of dominance aggression toward Peanut. She growls when he tries to pick up a bone near her and when they play (or fight) she will "hump" him. I always feed her first, give her treats first, pet her first but Peanut just doesn't seem to get it. He will walk through the door before Cassie but after me. He is always one head length ahead of her when we walk outside. Further, I think he is trying to challenge her because the playing time more recently has turned into fighting. It's more barking than anything -- to date there has been no blood. However, Cassie usually is on top of him, pinning him to the ground, and he lets out this barking/yelping noise when she releases, he goes right after her again until I break it up.