“A fine example to set for your children... brawling in public... what Gilderoy Lockhart must’ve thought —” [Molly]
“He was pleased,” said Fred. “Didn’t you hear him as we were leaving? He was asking that bloke from the Daily Prophet if he’d be able to work the fight into his report — said it was all publicity —”

Harry Potter and the Chamber of Secrets - Chapter 4 : At Flourish and Blotts
See this quote in the Pensive -