First, he blows some bubbles and, as expected, the kids all pop them. Then, he challenges them to NOT pop the bubbles even if one lands on the tip of their nose. Introduce the concept of self control and launch a discussion about stopping to think before you act. Dustin refers to it as a "bullet" in your year that you can refer back to again and again. "Think about that time when we didn't pop the bubbles..."
Friendship Lesson with the run away pepper trick. A visual to show students that friends don't want to be around people who use hurtful words & actions. Put water in the pie plate, sprinkle pepper all over it, then drop liquid soap & watch the pepper "run" to the edge. Take away question - What can you do to attract (rather than repel) friends?
For a fun way to allow multiple students to respond at the same time, try making speech bubbles out of poster board. Laminate them, glue or tape them to paint stirrers, and provide students with dry erase markers and erasers or old socks. They'll have a blast, and you'll increase the level of student engagement in your classroom.