Shouting fire in a crowded theater

"Shouting fire in a crowded theater" is a popular analogy for speech or actions whose principal purpose is to create panic, and in particular for speech or actions which may for that reason be thought to be outside the scope of free speech protections. The phrase is a paraphrasing of a dictum, or non-binding statement, from Justice Oliver Wendell Holmes Jr.'s opinion in the United States Supreme Court case Schenck v.

Source: Wikipedia — Shouting fire in a crowded theater (CC BY-SA 4.0)