I was in a weekly meeting in the plant manager's office when the phone on his desk rang. The plant manager got a real sour expression on his face because he REALLY didn't like this meeting to be interrupted. When his expression changed, it was weird. He hung up and said, IIRC, "The space shuttle just blew up while launching. Every one on board was killed." We all sat there stunned for a few beats and then the plant manager asked the guy who had been interrupted by the phone call to continue his report.
Unrealated sidenote: I will go to my grave believing the White House pressured NASA to launch because President Reagan didn't want to change his State of Union address to omit the part about there being a "teacher in space" as he spoke.