Appraisal vs Resignation

A newly joined trainee asks his boss "what is the meaning of appraisal?"
Boss: "Do you know the meaning of resignation?"
Trainee: "Yes I do"

Boss: "So let me make you understand what a appraisal is by comparing it with resignation"

Comparison study: Appraisal and Resignation Appraisal

In appraisal meeting they will speak only about your weakness, errors and failures.
In resignation meeting they will speak only about your strengths, past achievements and success.

In appraisal you may need to cry and beg for even 10% hike.
In resignation you can easily demand (or get even without asking) more than 50-60% hike.

During appraisal, they will deny promotion saying you didn't meet the expectation, you don't have leadership qualities, and you had several drawbacks in our objective/goal.
During resignation, they will say you are the core member of team; you are the vision of the company how can you go, you have to take the project in shoulder and lead your juniors to success.

There is 90% chance for not getting any significant incentives after appraisal.
There is 90% chance of getting immediate hike after you put the resignation.

Trainee: "Yes boss enough, now I understood my future. For an appraisal I will have to resign..!!