If you've ever spilled coffee on a piece of electronics, maybe a keyboard or even a laptop, spare a thought for the pilot of United Airlines flight 940, outbound from Chicago and heading to Frankfurt. Not long after takeoff the pilot apparently dumped a cup of Joe onto the communications panel in the cockpit and things rapidly went downhill from there. The crew inadvertently sent a code 7500, which indicates that the plane is being hijacked and, as you can imagine, that led to a lot of unwanted attention. It's not clear