“Ordinary fortune-tellers tell you what you want to happen; witches tell you what’s going to happen whether you want it to or not. Strangely enough, witches tend to be more accurate but less popular.”
― Terry Pratchett, The Wee Free Men
which brings to mind:
“You have ever been a herald of woe. Troubles follow you like crows, and ever the oftener the worse. I will not deceive you: when I heard that Shadowfax had come back riderless, I rejoiced at the return of the horse, but still more at the lack of the rider; and when Eomer brought the tidings that you had gone at last to your long home, I did not mourn. But news from afar is seldom sooth. Here you come again! And with you come evils worse than before, as might be expected. Why should I welcome you, Gandalf Stormcrow?”
– Tolkien, the two towers; lord of the rings.