No, I wouldn't be a Gryffindor if I would.

For a sickle, would you go wake up a teacher by dumping ice water on them?

On April's Fool.

For a Sickle, would you tell a friend's parent their cooking sucks?

Nah, I value my friends. (Their parents might tell their children to stay away from me)

For a sickle, would you hit a teacher?

A playful hit, sure.

For a Sickle, would you re-read the worst novel you've ever read before and write a scholarly-quality essay on it?

Not for only a sickle!

For a sickle, would you eat your least favorite edible food?

A spoonful? OK.

For a Sickle, would you randomly dance in public?

Yes
For a sickle would you prank peeves think of the punishment he would give you

Oh, it's on. Peeves will never know what hit him >:D

For a sickle, would you get detention 10 times in a row?

No.

For a Sickle, would you catch colds on purpose?

Sure, then I can take a lazy day.

For a Sickle, would you throw away your favorite dish?