Back before I was an entrepreneur, I remember when one of my co-workers accepted a position at another company. The general manager turned to her and said, "Get. Out."
Bloomberg is actually infamous for giving employees who resign the cold shoulder, even refusing to shake their hand when they leave. I completely disagree with this approach. How you treat an employee when they resign affects the employee much less than it affects the people who stay.
Whenever someone leaves our company, even when I'm pissed off, I will always be gracious, and ask them to share their experiences (both good and bad) with me.
Agreed. Witnessed this first hand. The employees thought less of the CEO, saw him as disrespectful and not much of a leader. Not the kind of things you want your employees thinking about you while you're trying to grow a company, I'd wager. But then again, if you don't care, that is also reflected.