It's perfectly legal to yell, "Fire," in a crowded theater as long as you always maintain your intent as innocent. The prosecutor has to prove that your speech or actions were made for the principal purpose of creating panic.
The MSM is practicing, "Stick to your story and nobody gets caught."
https://en.wikipedia.org/wiki/Shouting_fire_in_a_crowded_theater
Legal fiction (Theater) See Also: https://en.wiktionary.org/wiki/fifth_wall