My grammar is a little off because Chinese is my first language. However I am seeking nice accidents in my creation, since there can be errors in my grammar. Here is a story that you may have already heard:
A long time ago, an old man lost his horse, and people felt sorry for him. "How do you know it is a bad thing?" he said. Soon, his lost horse came back and brought home several other horses, and people congratulated him. "How do you know that it is a good thing?" he commented. Then, one night all the horses were gone...
The moral of this story is that it is hard to tell the boundary between fortune and misfortune.