Do you have students who are not meeting grade level expectations? There are some stages that some parents go through when their child has trouble in school. This post will help you understand your parent's perspective a little better.
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..."