What was Barnabas's problem today? He has been a vampire for several weeks now so he knows the ropes, and Maude Browning's throat was completely uncovered and available for biting - and yet he fumbled his attack. He came at her from about three feet away, and he was very slow to close in on her neck, giving her every opportunity to scream for help. He needs to get his mind off of Trask and onto the essentials of un-death.
Barnabas has his ring back. I'm not sure when we first saw it back on his finger. It's a pity nothing was made of the joyful and touching reunion of the vampire with his ring.
Maude's dialogue after the attack was strange. It sounded as though it were written for a Pansy Faye-style Cockney accent, but Vala Clifton delivered the "I'm all a-tremble" lines in a straight American accent.