The moment at which two people, approaching from opposite ends of a long passageway, recognize each other and immediately pretend they haven t. This is to avoid the ghastly embarrassment of having to continue recognizing each other the whole length of the corridor. – Douglas Adams
If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family anatidae on our hands. – Douglas Adams