Evita and Blondie are best buddies. They play, rough-house, patrol the yard, etc. together. Blondie and Evita do take naps together on Evita's blanket, but at night, Evita sleeps with Tuco on Tuco's blanket. Blondie sleeps alone on his own blanket at night. Tuco has his own food bowl and Heaven help the dog that gets too close to that bowl. Blondie and Evita share whatever other bowl is handy, they share treats, chew bones, etc. As for the various mixes in our pack -- Tuco has characteristics of a number of different breeds, most predominant of which seems to be border collie (we have run him on both cattle and sheep he does very well herding). Evita is a mix of blue heeler and GSD (she is a BEAUTIFUL girl!!!). Blondie -- well, anybody's guess here, but he seems to be mostly some kind of terrier. Blondie is all white, except for coffee-colored patches on his left eye, his right ear, and where his stumpy tail begins. He has that sleek, sturdy little terrier build. Blondie needs a lot of obedience work, so he does not ride anywhere with us yet. Evita and Tuco usually go in the car or truck together for short trips, and just one or the other on longer road trips. I should add that Tuco is a little hard of hearing. Now, another question -- if this is dominance-realted, should I mix in it, or stay out? I feel just terrible when Blondie gets knocked around!