Here's a message every candidate, every party leader, every newscaster, and every citizen should send: we will not tolerate the sort of childish and unproductive behavior we are witnessing at campaign events. There are other more adult ways to show your disagreement with a candidate or an issue. Speak up, write a letter to the editor, get involved with an activist group, use social media. You are not well served by acting like a thug. And a funny thing, you may actually advance the fortunes of those you are protesting.