1. "No one would have made me prefect, I spent too much time in detention."


2. "The map never tells lies!"


3. "You're not a bad person. You're a very good person, who bad things have happened to."


4. "What's life without a little risk?"


5. “Mr. Moony presents his compliments to Professor Snape, and begs him to keep his abnormally large nose out of other people's business.
   Mr. Prongs agrees with Mr. Moony, and would like to add that Professor Snape is an ugly git.
   Mr. Padfoot would like to register his astonishment that an idiot like that ever became a professor.
   Mr. Wormtail bids Professor Snape good day, and advises him to wash his hair, the slimeball.”

The last one made me laugh :)

- Andromeda