unforgivable curses

its rather alarming tt in e book, the supposedly good guys were dishing out unforgivable curses (except the killing curse) like giving out sweets..

quite disturbing..

harry of course had used it previously in halfblood prince when sirius died but he obviously didnt Mean it.. someone tell me why he wasnt punished? isnt the punishment for it a lifetime sentence in azkaban? hmmm


anw as u'll read about, he natually mastered them (hey, practise makes perfect doesnt it?)..



anw, 2 hogwarts headmasters have been killed by Avada Kedavra in a row... lol.. interesting piece of funfact..