Quidditch tryouts for Slytherin are on Friday, and I'm going for chaser, even though Blaise keeps telling me I have a "seeker's build," whatever that means.

What I think it means is that he wants to go for chaser and knows that I'll definitely beat him. I bet nobody will even try out for seeker because there's no way they would be better at it than Harry. So why bother?

I can't believe that someone brought lice into the school. I wonder who that could be. Not that it's their fault, I guess. I mean, the prefects said that anyone can get it, and I looked it up in a book and it said that girls get it more because they have longer hair to cling too, and also that lice prefer clean hair, which was surprising to me. I would have guessed they liked dirty, greasy hair, and Teddy told me he would have guessed the same thing. It's funny how sometimes something that isn't true can become what everyone thinks. Still, it would be completely disgusting to have lice and I'm glad that I don't.

Ugh, now I'm sorry I wrote about it. I feel all crawly.