Over 20 years and a fair share of resignations given to me, I've learned the immediate reaction I have to that unfortunate (sometimes not entirely unfortunate) news becomes part of my legacy I've left with that employee. Am I giving this person the memory of working for a jerk boss who made them feel horrible in moving on or the memory of a boss that was supportive right up to the last minute?
How many times have you been sitting in a meeting and thinking to yourself, "This Sucks!"? A million times, a million and ten perhaps. You're sitting and thinking you'd rather poke your eyes out with hot sticks of fire than listen to one more status meeting. But you don't say any of this out loud. Why not? Speak up! Be the catalyst to better-ness!