Challenge!

There are, it has been said, two types of people in the world. There are those who, when presented with a glass that is exactly half full, say: this glass is half full. And then there are those who say: this glass is half empty.

The world belongs, however, to those who can look at the glass and say: "What's up with this glass? Excuse me? Excuse me? This is my glass? I don't think so. My glass was full! And it was a bigger glass!"

from The Truth, by Terry Pratchett

This just struck me as such a Draco-like comment that I thought it really deserved to have a fic built around it. So, challenge is to incorporate the bit in quotes being spoken by Draco. Yay!