We have a terrier mix so it's not a purebreed.  She was a pound puppy that we were fostering and when it came time to give her to the rescue, I couldn't let her go!!! She is SO CUTE!!!! She is terribly behaved which is partly her fault (breed has lots of energy) and partly mine (I haven't taken the time to be consistent with her training).  She loves to play bite and hassles all the other dogs and cats a lot. None of the other animals particularly like her but that is because 4 are cats and the other 3 dogs are older and don't want to play. I think a terrier would be best with another dog of...