well, take a good look, lads.  they stop. argus filch stands at the top of the landing, his cat -- mrs. norris -- twitching her tail at his feet.
this night might well be the last you spend in this castle.
what's going on here? go on now! make way.  mrs. norris! you! you've murdered my cat! i'll kill you! i'll --
ask him! it's him that's done it. you saw what he wrote on the wall! besides, he knows i'm -- i'm a squib.
rubbish! he saw my kwikspell letter!
my cat has been petrified! i want to see some punishment!
caught in the act. i'll have you out this time, potter. mark my words.  as mcgonagall leads harry away, he looks back. filch stares at justin and nick, then turns. camera dollys
dark magic. that's what you've got, potter. even the air you breathe comes out poison. you're evil. evil as they come.