So. Sarah stops Barnabas from killing David, and Barnabas goes and attacks some random girl. And her life isn't as important as that of the young Collins heir, is that the idea? I'm sort of puzzled about the attack. Apparently Barnabas did bite her, but he didn't strangle her. I guess the first-bite-then-strangle M.O. wasn't developed until the trip to 1795. And the whole bond between vampire and victim doesn't seem to apply here. Is that because Barnabas wasn't interested? How shattering to be attacked by a vampire and consequently to have your whole life suddenly focused around him - and then to have him say, "I changed my mind. Go away."
We've got some nice period sexism in this episode, with Sam and Dave making decisions about Maggie's life without even consulting her.
Bob the Bartender got several lines today. I'm not sure he ever talks as much again during the whole series, and you can see why. That voice is just not up to Dark Shadows standards.