Max: You're going to be upset.......and possibly afraid for my life. But it's the right thing to do, so I'll tell you.
I was practicing alone on the quidditch field before the game. Then out of no where this dementor appeared and attacked me. I knew how to cast a patronus, but it wasn't fast enough and I fell off my broom. it was coming after me and it could have been really bad if Adam hadn't arrived in time to cast his own patronus.