Answer:
He means that it was rude and wrong.
Explanation:
Common courtesy refers to something that is generally suggested and expected behavior. By saying that it is not common courtesy he is using a humorous way of saying that the "friend" did something wrong.
Prewriting should come first.
Tracy is in the hospital; someone told me (she) is quite ill.
m8 i need to see more plz and dont post ur real name on here cheers :)