Why Daisy would do it? You don't think Shaun's non-training of her had anything to do with it?

He forced her to be with kids when she was scared - and then cuddled her afterwards, reinforcing that that fear was ok. If you look back at your posts about how Shaun handled her regarding other people, especially kids, you will have your answer.

He better call his friend's aunt...is he not at all bothered that Daisy hurt his mom???

I hope he acts, and Daisy gets the good home.