Personally I don't see her being totally incapable of doing anything, if this was the case that she could barely get out of bed I would hope June Neville and Colin would of intervened and Been of the view, if she was incapable of looking after herself, it would be potentially dangerous and totally unfair on 2 young boisterous children to be in the care of someone in this state, yes Sheila was on medication, yes it would of affected her somewhat but I don't see any responsible doctor prescribing a drug to a young mother of twins medication that rendered her incapable of doing anything, even to the point she couldn't hold a conversation.
Lucy, we're given polarized versions of how Sheila was. I believe them all because ALL are possible. I don't believe her to have been a danger to her children in any way OTHER than she was unreliable and unpredictable. THAT is what the various descriptions of her behaviour lead me to believe.
I really don't know what to make of the alleged conversation re child care. The boys lived -for the most part- with Colin. Sheila was on a short visit to the farm -in fact was due to go back on the Thursday because the boys were going away with Colin on Friday- I'm really curious as to exactly WHEN this alleged child care was thought to be needed which in turn, make me suspicious that such a conversation took place. The situation -between Colin, his family, the Bambers and Sheila- was being managed.