You see, I'm a very good friend of Lily and James' son, Harry. If you've heard about what you did...I assume that has not occurred yet. Afterward, you took the form of a rat and hid among the Weasley family, where you were the pet rat of my friend Ron. We learned about this our third year, and about how you framed Sirius for the murder of James, Lilly and all those muggles.
So...just know in advance that you being here will be hard for a lot of people.