“Mr Moony presents his compliments to Professor Snape, and begs him to keep his abnormally large nose out of other people's business."
Snape froze. Harry stared, dumbstruck, at this message. But the map didn't stop there. More writing was appearing beneath the first.
"Mr Prongs agrees with Mr Moony, and would like to add that Professor Snape is an ugly git.”
-Harry Potter and the Prisoner of Azkaban