"Thank you, Mr. McColl." Leon sat up and stood, a twitch starting to go off in his fingers and Leon's fangs were visible. He was hungry again and as with before, the thirst got to him out of the blue and rose above even the ex-Priest's willpower to put it off.
He'd see Mr. McColl out of his cell first, having just enough control to hold off until the teacher was gone before he broke down and drank again, tearing into the bag of blood and drinking until the hunger was satisfied. Until next time.