The Hound and the Hare
A hound, after long chasing a hare, at length came up to her and kept first biting and then licking her. The hare, not knowing what to make of him, said; "If you are a friend, why do you bite me? But if you are a foe, why do you caress me?"
A doubtful friend is worse than a certain enemy. Let a man be one thing or the other and we then know how to meet him.