One of my students has been working on The House of Hades for about a month now. He's on page 188 and has read other books in the mean time, but he's stalling.
I only have one copy of this book and two other students are ready to read it.
Instead of demanding that he finish the book over the long weekend, I game him a challenge.
If he finishes his book (The House of Hades) and I don't finish my book (The Sword of Summer) by Wednesday, the class gets to pick my outfit for Thursday. They voted on a Denver Broncos jersey and a San Francisco 49ers hat. As an Arizona Cardinals fan, this is hurtful and they are so excited about the idea of me wearing my rival team's attire.
If I finish my book and he doesn't finish his, his table team gets to pick his outfit for Thursday. They voted on a pink tutu.
If we both finish, there is no public embarrassment.
On a side note, he started on page 188. I was on page 20. I've got a lot of reading to do before Wednesday!