My Graph of Desire shows the development of my desires during a normal day at school.

As you can see, most of the time I think about food. After having a snack in my lunch break, I get bored and start annoying people by quoting Vicky Pollard from "Little Britain" before getting hungry again.

My desire to sleep reaches its highest point at about 13:30.
My desire to work basically stays at the same level the whole day long.