Freakonomics Radio Edit this Published in Freakonomics Radio by Freakonomics Radio Should Tipping be Banned? Listen 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/296323/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend It's awkward, random, confusing -- and probably discriminatory too.