https://www.cnbc.com/2018/08/01/elon-musk-trolls-david-einhorn-sending-a-box-of-short-shorts.html

David Einhorn's hedge fund Greenlight Capital reported Tuesday that the firm's bet against Tesla shares "was our second biggest loser" in the most recent quarter. The billionaire also said in the Greenlight letter he was "happy that his Model S lease ended" and was replacing the car because of problems with the technology.

Tesla CEO Elon Musk seized the opportunity on Twitter, retorting that he would send Einhorn "a box of short shorts to comfort him through this difficult time."