This time around, when Barnabas terrorized Maggie, I wasn't so sure that it was a mistake. I started thinking about brainwashing techniques, about which I know practically nothing, but it does seem to me that professional brainwashers use the stick as well as the carrot.
I'm not sure why the brainwashing isn't working. My inital thought was: "Why doesn't Barnabas just bite her again to re-assert his hold?" But Sam mentioned that she was paler than he'd ever seen her before. (Was she? I wouldn't know. Pallor is one of those things that I never notice.) So maybe Barnabas knows that if he takes any more blood at this point, Maggie will become a vampire before she has completed the training program. But if he's taken so much blood, why is she becoming more resistant to the brainwashing? He should have been able to get her mind off the pipe pretty easily, and surely the terror of the coffin would have given her something else to think about. It is at times like these that I particularly regret not having seen the pre-Barnabas episodes: I have very little feel for Maggie's pre-Barnabas personality.
Maybe Barnabas should have chosen Sam to be his Josette. Sam is, after all, being fairly amenable to brainwashing. Nope, he didn't see Maggie after all. It was just an alcohol-induced delusion. Perhaps he never had a daughter at all. And the beard can be shaved off.
As for EmeraldRose's question...I like the second Josette tune better than the first because it has an end instead of going round and round - but maybe the unending tune is better for brainwashing purposes - a peaceful song but no real peace. It was Robert Cobert who wrote the second one, right? He did an excellent job of mimicking the first one without actually copying it, because when I'm listening to the first tune I can't remember the second, and when I'm listening to the second tune I can't remember the first. I've been watching the Lady Hampshire 1897 episodes recently and I still can't remember the one tune when I'm listening to the other.
And at Collinwood on this night, Elizabeth has surely been pacing the floor.