Well, yelling Fire in the crowded theater is the iconic example of manipulating people into doing things they wouldn't otherwise do. There's a clear time vs ri

Well, yelling Fire in the crowded theater is the iconic example of manipulating people into doing things they wouldn't otherwise do. There's a clear time vs risk component. If you don't have time to evaluate the speaker, and the risk is high, very few people will not believe the speaker. For regular old speech like "this flavor of ice cream is better" i agree with you.