Most cats and dogs can live together with out issue. I have two cats as well as a couple birds and a G.pig. My dogs know to leave well enough alone. Only one dog likes to "watch" the cats, Fenice. But at almost 6 has yet to do anything other then put her cold nose on their butts-lol. Depends on the Neo'. But if raised and trained correctly Neo's make awesome companions. The only draw back (imo) is the drool. There are many neo's in small packages, if you decide that my breed would be something your interested in I would be more then happy to refer you to someone who breeds towards a more compact Neo. Also Nothing that was done in Eragons training has changed him. Other then making him a bit more aware of his surroundings. Recently after having a few years of p.p. work, he (over last spring) passed his TDI and CGC. His personality has always been unique to him, and he is just as happy and clown like as Ever. Only now he "sings" to me when I touch his training equipment.