From: {Bosses name}
Subject: Thursday.

	
I would be grateful if you could come to my office this Thursday 
to discuss your recent performance.

I have received comments from a number of your colleagues that 
would indicate that maybe you are having some problems at home 
that may be affecting your work.

If this is the case, I hope we can help, but we must resolve 
this matter as soon as possible as if your performance does not 
improve significantly we may have to reconsider your position 
within the company.

I am sure you can understand our position, and wish to assure 
you that we want to help. But for us to be able to help you, 
we must discuss this to get to the bottom of the problem.

Please confirm to {bosses secretary} that you will be able to 
attend on Thursday at 10am, your line manager and a personnel 
officer will also be present. You may wish to invite a union 
representative.

{Bosses name}