Why Are You Worrying Me?

«As the post office clerk was sticking the stamps and the label for express delivering on the envelope, Perlmann asked him how long, in his view, it would take to arrive. The clerk shrugged.

'Three days, a week. No idea.'

Why should it take a week? Perlmann asked irritably. The man threw the envelope into a basket, counted the money and then  looked at Perlmann in silence for a second or two.

'As I said, no idea.'

So why are you worrying me, then?»

Pascal Mercier, Perlmann's Silence