Dear Professor Dumbledore.
My apologies. I now realize that my last letter to you was incredibly selfish of me. I spoke mostly of a foolish contest between myself and Professor Lockhart when I should have been speaking with you about the breach in safety at your school, and the best method of cleaning the blood from the walls.
I feel duly the shame of my actions, and the drive to better conduct myself in the future. I do hope you will forgive me for my rash and very undeserved letter.
Cygnus Stixrood, Chief Centennial Inspector, Department For Permits And Filing.
P.S. I hope you understand that I will be sending a report of the 'Chamber of Secrets' incident to the proper authorities at the ministry. Although it is most likely just a prank happy child with ill taste, I still have to send the report, as per regulations.
P.P.S. I really do hope you confront professor Lockhart about his deplorable behavior, you would think the man has not a shred honor.