There's nothing wrong with you. The company is just taking another direction.

You're getting old, and this is a young person's business. The clients expect fresh blood.

We're replacing you with a machine.

I just don't think you're right for this place.

The company is being taken over by the CIA, and you failed security clearance. Of course this is top secret, and we'll deny it in public.

We have information which indicates that our competitors are reading your mind telepathically. We can't keep you here where you can see our trade secrets.

You're a great worker, but we've decided to concentrate on our softball team.

Don't blame me. Blame the Asian economy, they're taking all the jobs because they can do it cheaper.

We're going high-tech and we need people who grew up using computers.

If it were up to me, I'd keep you, but the management consultants developed a sophisticated formula which balances productivity and seniority. According to their calculations, you're the one who gets fired.