susiQ, you raise some good questions about Thanksgiving Day. We saw Baby K and KB at Safeway that morning and a neighbor saw PF's truck right after lunch.
Who actually said that was the arrangement? Who said that PF and KB had arranged for PF to take Baby K?
You're right, it doesn't make sense. IIRC, she mentioned something to her mother about possibly having lunch with PF, but why would she hand off Baby K on a holiday weekend? I don't recall anything about her telling her mother that was the plan.
I'm really curious now to know if SF was home over Thanksgiving, because I can't see PF taking Baby K if he didn't have SF at home to help out.
Is PF our only source for the story that he had arranged to pick up Baby K on Thanksgiving Day? No Thanksgiving with KB, just pick up the baby and leave?
If PF is our only source, then we really don't know what was planned that day. I think it's more likely that he had told her he would drop by for lunch, but not that he was taking Baby K.