It's an interesting concept. In yesterday's Chicago Tribune there was an article about Zappos.com and how they make sure they have the most engaged, committed and customer oriented employees...they pay them cash to quit. That's right, they literally give them the opportunity to "take the money and run" one week into their training with the company.
After the first week of new employee training, they offer new hires a good chunk of change to leave if they feel it's not the right fit. Interestingly enough, most people don't quit. They stick. And they like it. The impact: employees who are engaged, highly motivated and committed to their jobs, providing fantastic customer experiences. And that means greater revenue and profits which explains this organization's rapid growth and the attitude quoted by many of "You couldn't pay me to quit."