Edit this Published in 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.