What's up with Dumbledore?

Chapter 1: What's upsetting him?

The sun shone bright, the birds drank the dew,
Everyone was happy, one was blue.
The students of Hogwarts talked and chatted,
While the headmaster felt glum and incensed.
So down he went to the big Great Hall,
And told McGonnagal to call for all.

"Students, may I have your attention please!" Professor McGonnagal shouted and everyone turned their heads to face her. It was a very nice, warm Saturday which meant no lessons today and that's the main reason why everyone's happy, except for Hermione of course, she's one of Harry Potter's friends and always the top in the class. "Professor Dumbledore would like to say something to you all"

Dumbledore came and stood in front of everyone, looking very sad indeed, and said, "Good morning everyone! What a very nice day it is for you! The sun is shining, the birds are singing, and the main thing is that there are no lessons today, with the exception of Miss Granger of course" "Are you embarrassed for him saying that Hermione?" Harry asked, trying not to laugh. "Yes, everyone's staring at me!" "And now back to what I was going to say", Dumbledore continued and everyone took their eyes off Hermione and looked at him, "Well now I am having a really bad day today and it just makes me sad to see all people happy and I'm sad, this is a selfish thing I am going to do but I don't care, I will have to bring back the lessons so no one is happy"

"Yay!" Hermione cheered. "Shut up Hermione!" Ron ordered her, feeling really upset.

Everyone groaned with despair and sadness, why would Dumbledore do this and what is upsetting him? That's what's everyone's wondering. Even the teachers are doing the same as the students, feeling very mad at him also.

Then after everyone's stopped Dumbledore began to announce which house goes to which class. First the Gryffindors had their worst lesson, potions. And to make it even worse, with the Slytherins.