Disconnet
An email ruined your day.
It came from a particularly annoying customer whom you cannot please. Cannot may even be an understatement. You have done everything short of moving heaven and earth and yet he is unhappy. The sun is hot, he says. My cat is meowing, he cries. The grass is greener on the other side, he complains. And the ultimate: I am disappointed. What you have done is below my standards. You cannot please me. Why can’t you please me? I don’t think you ever will.
You jump and have jumped at every bark of that voice, adjusted things a little, bent over backwards, overdelivered, allowed yourself to lose a little dignity, for nothing. Your nerves still get frazzled every time he calls or he emails (and he calls and emails to make sure you know about his unhappiness).
So what do you do?