Lucius made a mistake, alright. A mistake the size of a Humgarian Horntail. You think that Minerva is a lioness guarding the Gryffindors? She's as harmless as a baby kneazle compared to a horked-off Filius Flitwick dealing with any threat to a child, Ravenclaw or not. (Think back to all we know about Canon!Filius.) I just hope the lesson that Lucius was given sinks in. (What I'm curious about is what Narcissa and Draco are thinking. Remember, one or both have a Sirius Escape Hatch available.)