Just this. We are staying with her for the weekend. Dog is 7 and a JR mix. My DD age 4 gave the dog a fright by waking her suddenly as she was napping and the dog lunged and bit her on the face- it pierced the skin a little but not much damage done. Child v upset. MIL said she will put dog down if WE want. Dogs bitten three people now, it's nervous and unsocialised and untrained. Thoughts?