"FILE - In this Oct. 25, 2006 file photo, Sun Microsystems CEO Jonathan Schwartz gives a keynote address at Oracle Open World conference in San Francisco. Social media offer new opportunities for pithy farewells to zing around the world in an instant. Schwartz managed a classic of the genre when he quit his job in a philosophical tweeted haiku in 2010: ""Financial crisis/Stalled too many customers/CEO no more."" (AP Photo/Paul Sakuma, File)"