You can never be too careful when you breed. I have an application that must be filled out, a sales agreement that states I have the first right of refusal if they don't want the puppy. If everything looks ok the I have them visit and if my Krissy likes them then it is a go. (Krissy is very sensitive to people).
I have placed puppies in homes with kids and it has turned out wonderful. One puppy went to a doctor that read books, had her own house, could take the dog to work, and seemed perfect. The dog took to her right away. At 10 weeks she took him home. I got a few calls and before Thanksgiving last year at 16 weeks she brought the puppy over for me to baby sit. She then called 4 days later to say she didn't want him after all!
Poor Brody needed so much attention to get back in shape as a puppy without issues. I worked with him for a few weeks to make him a secure happy guy again.
He is over 1 now and the family I placed him the second time bought a house because it has a sun room for their boy! Needless to say he is a happy boy. I was so glad the doctor gave him up!