At school, Hogwarts Headmaster Albus Dumbledore (Michael Gambon) told the students about new staff members: the new Defense Against the Dark Arts teacher Professor R.He told her she was a "very nice girl," o which she responded: "But who needs nice girls?" as hey were about to kiss.The teen-aged boys, wearing zoned-out, pathological expressions on their faces and assuming arrogant poses, are preparing to go on a rampage led by Alex.As his eyes shut, he entered deadly dreamland:Joey""s bed began to undulate and rock back and forth in waves - he pulled away the comforter cover, revealing the poster""s Pin-Up Girl, who had vanished from the poster...it might get somebody killed.Why don""t you let me meet with the son-of-a-bitch?Chief: No, none of that.You""d end up with a real blood-bath.Mayor: I agree with the Chief.We""ll do it this way.As Callahan departs, he is advised by the Mayor to avoid stirring up violence (as he did in the past in an attempted rape case), but Callahan is contemptuous of authority that limits his effectiveness:Mayor: I don""t want any more trouble like you had last year in the Fillmore District.