1. the Labrador Retriever- which I hate because there are more dogs that are just as affectionate, possibly more but, no EVERYONE has to have one and diss my dog because she 'isn't suppose to be good with kids' but she is great with them!
2. I would say the Corgi (both breeds) because they are bred to herd and I read somewhere that they nip people just to herd them, even in their own house.