MH's daughter being with them bothers me. If she had other things in mind for the 7 yo she allegedly drugged, what was she going to do with her daughter during that time? Was she going to take her home to Connie? Was there a period of time when she did take her home for a nap?
The thing about this that is hard for me to wrap my head around, is when Mrs Polk was drinking. I want to make it clear that I am not trying to defer any blame from MH to her at all. I am just trying to figure out when she was drinking. If she came straight home from work that doesn't fit, I certainly hope she wasn't drinking during the 30 or so minutes that her child was acting strange - that would also mean she was drinking and driving (by taking her daughter to get food).