Then, every so often comes a bludger...

A tricky ball but if you know how you can beat it away, even though you know it will come back for you. These are the difficult things. Even more difficult than homework, because believe me that’s the quaffle.

I think everyone has different things but mine were when people died...

when I was bullied because I was a Snape...

or because I did badly at something...

Each time I found a way of using my metaphorical “bat” and beat them out of the grounds.