The term "bullying" seems to be thrown around a lot, when it might be an isolated event. This is interesting and may be worth discussion. Lesson about identifying bullying behaviors vs. mean, teasing, or conflict behaviors.
"Wheel of Choices" is designed to give students appropriate options in their struggles with others. Whenever they can, students should try three of these choices before approaching an adult with an issue. I think I could use this wheel myself tho!