Polite

As you know, the English people is very polite. If you employer wants to fire you, he will use most polite sentences. And here are popular sentences:
I don't know what we will work without you, but we will try!
I will tell every people that you leave the job, beacause of your illness. But in fact, I was taken ill with you.
You are not irresponsible! The problem is you are responsible for many disaters than anyone can, in your position!
I have a good news for you! You will not have to worry about going to work late anymore!
Tell me: How long have you worked here, except tomorrow?