It gets you nowhere if the other person's tail is only just in sight for the second half of the conversation.
A. A. MilneAnd if anyone knows anything about anything," said Bear to himself, "it's Owl who knows something about something," he said, "or my name's not Winnie-the-Pooh," he said. "which it is," he added. "so there you are.
A. A. Milne