Why I love teaching, part II:

on the exam I just graded, one of the last questions was "Leibig's Law of the Minimum states" and one of my students wrote "Thank you for allowing us a drop test!" (For the record, he's earned an A in the class as it is).

I love those little flashes of humor. It makes grading a lot easier.

(For the record: a description of what Leibig's Law is)