You expect the market to have common sense all the time. You'll never get it. Market is composed of so many different people, some of them have common sense, some don't, and at any particular moment, everyone could lose common sense. This is the market. So you explore the moment when it doesn't make sense, and wait for common sense to come back. Whining about the market is not behaving the way you want is the most common occuring everywhere. It doesn't do any good.