A little Friday advice: if you work for one of the great mammoths in the history of technology, and your faltering CEO just emailed to say he's departing, make sure you click the right buttons when you reply.

This slip-up comes courtesy of Roy Levin, "a Distinguished Engineer and Managing Director of Microsoft Research, Silicon Valley, which he co-founded in August, 2001," according to Microsoft.com. At least he replied from a Windows Phone. Everyone likes a company man.

Thanks, anonymous email tipster!