I have two little yorkie girls, and three kids (ages 7, 5, and 4). My kids treat the Yorkies like gold (seriously). They are soooo extremely cautious and careful with them and around them. I had to establish rules the moment we got our first yorkie 1.5 yrs ago. NO running in the house, NO throwing things (toys etc), NO holding the puppy while standing or sitting on furniture. Even my 7 yr old must sit on the floor with Missy or Dora in his lap. They understand the rules completely. They are never rough with them. They understand how fragile they are and do their best to protect them. My yorkie girls are not snappy at all with children, they actually adore them. They are well socialized with kids however, because I drag them to the elementary school with me anywhere between 1-3 times per day. All of the kids come out of school at the end of the day looking to see if Missy and Dora are there. I do find that I have to be cautious with them around children who don't know how to treat tiny dogs, but that goes for some adults too

I have one Yorkie that's yappy, and one who is not. Their personalities are completely different, although they are sisters. Housetraining wasn't too bad, but I was patient with that from the start. I knew it wouldn't be easy. This is the first toy breed dog that I have owned, and I have completely fallen in love with the breed (so much so, that I had to get a 2nd). They are beautiful, intelligent, and carry themselves with pride.