Harry Potter and the Prisoner of Azkaban (Harry Potter, #3)

by J.K. Rowling

Extremely unusual though he was, at that moment Harry Potter felt just like everyone else — glad, for the first time in his life, that it was his birthday.

“What were you doin’ down there?” said Stan, dropping his professional manner. “Fell over,” said Harry. “’Choo fall over for?” sniggered Stan. “I didn’t do it on purpose,”

“— for Humongous Bighead,” said Fred.