Appraisal Vs Resignation

A newly-joined trainee engineer 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 an appraisal is by comparing it with resignation. "

In an Appraisal meeting they will speak only about your weakness, errors and failures.
In a Resignation meeting they will speak only about your strengths, past achievements and success.

During an Appraisal you may need to cry and beg for even a 10% pay hike.
In a Resignation meeting you can easily demand (or get more without asking more than 50-60% pay-hike!

During an Appraisal, they will deny promotion saying that you did not meet the expectation, you don't have leadership qualities, and that you had several drawbacks in reaching objective/goal.
During Resignation, they'll say you are the core member of the team; that you are the vision of the company, and so " How can you go ? "; you have to take the project on your shoulders and lead your juniors to success.

There is a 90% chance of not getting any significant incentives after Appraisal.
There is a 90% chance of getting an immediate pay-hike after you put in your Resignation.

Trainee : "Yes, boss, good enough. Now I know what to do. When you are about to do my appraisal, I will resign. "