Dd got lift home from a classmate & her mum & popped into their house. They have a new puppy & dd bent down to stroke it. She has long hair & apparently this dog likes long hair(!) so jumped up & I assume made a grab for her hair but instead bit the top of her ear. She said it really hurt at the time but didn't want to say anything (mum was in a different room). I feel I should let the mum know though. I don't know much about dogs so this might be quite normal behaviour for puppies. Should I say something? Dd is fine now.