"You did!" Harry shook Oliver's hand enthusiastically. "You taught me almost everything I know - don't pass that on to Sirius or Dad though, or they'll act all hurt and then go drown their sorrows over the ungrateful offspring."
He looked around. "You know, if you're offering flying lessons around here, the entire Slyth team ought to be lining up, cause Merlin knows they need all the help they can get."