Box is he a big west dog, lol! j/k is the 1st time they were introduced at your house? many dogs are very aggresssive/territorial when a new pup/dog is introduced to them on "their" turf w/"their" family. we view dogs as our posession/family member etc....the dogs view us as theirs. Had a similar experience, I think the deafness probably has alot to do w/kobe/nemo/pinball not picking up the hint or being able to understand his place in the pack....might take a scrape ot 2 to establish the pack order, it's the nature of the beast, especially w/female being established 1st and kobe ,ets. not being able to pick up all the signals....make sure wash the wound out with hydrogen peroxide, at least once a day for a few days at least...dog/dog bite is same as human/human bite can lead to some infections if not cleaned properly... good luck in whatever you choose, do feel that no matter what you bring in, there will def. be a tussle or 2 to establish order, especially if they are introduced at your house first...
Raz
Raz