From Failblog, here's a brief series of messages on Facebook among a high school teacher and a few of her former students.
Most of them apparently liked her but one, "Larry," was of the opposite opinion. Larry, it appears, did not do well and ended up having to take summer school, and he holds this against the teacher. Alas, Larry does not come out ahead in the exchange. It's a little like picking a fight with the sensei who flunked you out of karate class.