Aesop - The Cat and the Mice

A certain house was overrun with Mice. A Cat, discovering this, made her way into it, and began to catch and eat them one by one. The Mice, being continually devoured, kept themselves close in their holes. The Cat, no longer able to get at them, perceived that she must tempt them forth by some device. For this purpose she jumped upon a peg, and, suspending herself from it, pretended to be dead. When the Mice came near she pounced among them and killed a great number. Pleased with the success of the trick, she tried another. She whitened herself with flour, and lay still on the heap of bags, as though she was one of them. The young Mice crept dangerously near her, but an old one peeping stealthily out said: "Ah, my good madam, though you should turn into a real flour-bag,I will not come too near you."

Avoid even appearances of danger

Aesop - The Farmer and the Cranes

Some Cranes made their feeding grounds on some plough-lands newly sown with wheat. For a long time the Farmer, brandishing an empty sling,chased them away by the terror he inspired; but when the birds found that the sling was only swung in the air, they ceased to take any notice
of it, and would not move. The farmer, on seeing this, charged his sling with stones, and killed a great number. They at once forsook his plough-lands, and cried to each other: "It is time for us to be off, for this man is no longer content to scare us, but begins to show us in earnest what he can do."

If words suffice not, blows must follow

Aesop - The Hawk, the Kite, and the Pigeons

The Pigeons, terrified by the appearance of a Kite, called upon the Hawk to defend them. He at once consented. When they had admitted him into the cote, they found that he made more havoc and slew a larger number of them in a single day, than the Kite could possibly pounce upon in a
whole year.

Avoid a remedy that is worse than the disease

Aesop - The Shepherd's Boy and Wolf

A Shepherd-boy, who watched a flock of sheep near a village, brought out the villagers three or four times by crying out, "Wolf! Wolf!" and when his neighbors came to help him, laughed at them for their pains. The Wolf, however, did truly come at last. The Shepherd-boy, now really
alarmed, shouted in an agony of terror: "Pray, do come and help me; the Wolf is killing the sheep;" but no one paid any heed to his cries.

There is no believing a liar, even when he speaks the truth