Date: Oct. 26, 2010

Target: Leo Apotheker

Shot fired: "A few weeks ago I accused HP's new CEO, Leo Apotheker, of overseeing an industrial espionage scheme centering on the repeated theft of massive amounts of Oracle's software. A major portion of this theft occurred while Mr. Apotheker was CEO of SAP." —Larry Ellison

Oracle’s chairman is what you would call the epitome of a badass. During his battle with rival SAP, Ellison stated he could prove HP’s newly appointed CEO supervised a scheme to steal his company’s software. Only problem was Leo Apotheker had just left the country on business. After Apotheker refused a subpoena to attend court, Ellison verbally buried him every way possible.