Teacher steps on American flag to teach students a lesson

I put the flag on the ground, and I took two steps with my right foot and I said, 'This is an example of free speech,'" Francis told CNN affiliate WRAL. "Two students got up and left immediately with no word, no disruption at all ... I assumed something had happened. One student came to where I was and took
the flag from me."
Francis said he wasn't trying to offend students, just teach them the Supreme Court ruled such acts of free expression were protected.