I fired him because he wouldn't respect the authority of the president. That's the answer to that. I didn't fire him because he was a dumb son of a bitch, although he was, but that's not against the law for generals. If it was, half to three-quarters of them would be in jail.
Of General Douglas MacArthur
As quoted in Plain Speaking : An Oral Biography of Harry S Truman (1974) by Merle Mille