Edit this Published in Freakonomics Radio Show and Yell Listen 57 min Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/180168/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend Is booing an act of verbal vandalism or the last true expression of democracy? And: when you drive a Prius, are you guilty of “conspicuous conservation”?