Then there were the animal rights protestors who demanded that horses never do what comes naturally to them, pull a car and jog along the equivalent of a country lane.
Protestors were charged with second-degree trespassing, failure to disperse on command, and posting or displaying signs or placards in violation of legislative building rules.
They are a frequent tool of advertisers (particularly of events, musicians and films), propagandists, protestors and other groups trying to communicate a message.