You see it in education a lot. If you do your homework, you get to pick out something from the class treasure chest.

We asked them how motivated are you to stay off drugs, how much are you craving drugs, how likely is it that you may use drugs. Women who got incentives were more motivated.

You see it in business.

It is an inside joke of history that all its most exciting adventures inevitably end their careers as homework. Beheadings, rebellions, thousand-year wars, incest on the royal throne, electricity, art, opera, dogs in outer space.

You still have to do your homework, because you never know.

We've both got our homework to do.