But they felt that it was a distinct possibility. The place was well guarded. "Fightin' words" are not run-of-the-mill everyday insults. They generally involve racism, family feuds, politics, or something else that people hold dearly. In addition, the violent reaction is more likely to take place in a bar, where people have been drinking heavily and thus lost their judgment. You can walk down a street in Washington, DC (where the largest ethnic group is Afro-Americans) in daylight and call somebody a "dumb nigger," and it's unlikely that you would be prosecuted--although you might get the shit kicked out of you. But if you walk into a bar in East Los Angeles (the barrio for Mexican-Americans) at one o'clock in the morning when everyone is drunk, and yell, "You damn wetbacks should go back home and take your filthy greasy food and your juvenile delinquent children with you," the bartender will call the police and they will come and arrest you--if you haven't already been beaten to a pulp. There are exceptions to our constitutional right to freedom of speech. One is fraud: you can't lie to someone in order to connive them into giving you money or something else you want, or simply cheating them. This neatly covers the common example of yelling "Fire!" in a dark movie theater. You are lying to all the other people, in order to watch them harming themselves in the stampede to escape for your own amusement. Another is inflaming people to riot. This is a breach of the peace. Another is agitating for the overthrow of the government. If you don't like the government, you can always run for President yourself. Another is conspiring to commit a crime. This is considered a lead-in to the crime itself. They had arranged considerable protection, which implies that they believed that an attack was quite possible.