Overpopulation & Eating People

This was the highlight of my day grading. From a student's short explanation of Hardin's "tragedy of the commons" as applied to overpopulation:

One good thing about the cow is we can eat it if it takes up too much of our resources. And until we can start eating humans we need to seriously consider the affects (sic) of over population on our future.

Take that, Jonathan Swift.