It was a great article. Yes, I am noticing "a dirty look, a low growl, a shove," but then they just go at it so fast! They are both in the lowest pack positions, so maybe I should back off the privileges given to one of the Chihuahuas? But which one? Pack order is me, my husband and son, Rottie mix, Doxie, elderly cat, then Chihuahuas (not sure which is the lowest). I am really at the end of my rope with these two girls. The other dogs do not really get involved, except that they hang around the edges of the fight, almost as if they are making bets on the outcome! I am afraid that if it continues, the other two dogs will start to get violent as well.