The classic example is "shouting fire in a crowded theater"; a phrase we still hear today, despite its origin being the prosecution of anti-war activists: https

The classic example is "shouting fire in a crowded theater"; a phrase we still hear today, despite its origin being the prosecution of anti-war activists: https://en.wikipedia.org/wiki/Schenck_v._United_States https://en.wikipedia.org/wiki/Schenck_v._United_States