Dear Client,

You said it was of paramount importance that this software work flawlessly. I've worked hard to make it so, even when your indecision and lack of attention to detail indicate you don't care as much as you say and have made the project late.

Yesterday when I handed you a step-by-step user acceptance test plan, you delegated it to someone not as familiar with your specific requirements. You said you don't have time for such things.

I will remind you of those words when the project launches and you find something you dislike.

Sincerely,
Me