What is it about the one or two kids that change the whole mood of a class? What is it about a teacher that allows the mood to be changed by focusing on their bad behavior? What is it about human nature that you KNOW this is irrational, and yet it happens over and over again.
I should reread Fred Jones' book, "Tools for Teaching" to get some inspiration to deal with these boogers.
On a positive note. I LOVE my last period class of the day. What a sunny way to end the teaching day. They're so funny and positive and they work hard and work with me and even laugh at my jokes.