Once the glass-dish was squeaky clean, Harry started to droop. It was a sign of how much he trusted the Dark Lord when he allowed the man to lift him and carry him to bed. Snape wanted to follow, to make sure the idiot boy got to bed alright, when Barty held him back, hissing viscously, "When your Master gives you something, you take it and be grateful! Don't dare, ever, to protest an offering again! You have no idea how much weaving your mark took out of Harry."