Initially startling and disturbing but gradually mellow and satisfying for the lucky and perceptive.
Suddenly the organization that's been paying you for filling your box on the Org chart has cast you aside and you've met the first condition - you're Unemployed.
Before one can consider a retirement internship (unemtirement)one has to determine one's coordinates on the Food/Shelter/Yuks grid.
If you're covering your food and shelter with money you don't have yet and your yuks are neccessary to help you deal with that fact, you're not ready. There are numerous retirement blogs/websites that will help you put off that first can of 9lives.
If you're fortunate enough to have the situation under control with the debt load reasonable, you can use the unemployed situation to understand and adjust your FSY coordinates.
My personal hope is that during my internship I can adjust my coordinates so that I reach my spot on the grid and retire.