system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:We've all heard the phrase you can't shout fire in a crowded theater, what law are you actually breaking, what is the punishment?
gpt
When you ask about law, you really need to specify a jurisdiction. The famous saying about shouting fire in a crowded theater comes from a Supreme Court ruling on which types of speech are protected by the First Amendment, *case Schenck v. United States*--false shouting fire in a crowded theater, one justice suggested, would clearly not be. (*Schenck* was later overruled, but this particular example is probably still true.) This only means that this is a kind of speech a state or city *could* establish a law against.

To pick a jurisdiction, causing a commotion in this way could violate Title 18 of the Pennsylvania Statutes, § 5503:
> A person is guilty of disorderly conduct if, with intent to cause public inconvenience, annoyance or alarm, or recklessly creating a risk thereof, he:

>1. engages in fighting or threatening, or in violent or tumultuous behavior;
2.  makes unreasonable noise;
3.  uses obscene language, or makes an obscene gesture; or
4. creates a hazardous or physically offensive condition by any act which serves no legitimate purpose of the actor.