Those who try to entrap others are often caught by their own schemes.

A Dog and a Cock, who were the best of friends, wished very
much to see something of the world. So they decided to
leave the farmyard and to set out into the world along the
road that led to the woods. The two comrades traveled along
in the very best of spirits and without meeting any adventure
to speak of.

At nightfall the Cock, looking for a place to roost, as was his
custom, spied nearby a hollow tree that he thought would do
very nicely for a night's lodging. The Dog could creep inside
and the Cock would fly up on one of the branches. So said, so
done, and both slept very comfortably.

With the first glimmer of dawn the Cock awoke. For the
moment he forgot just where he was. He thought he was still
in the farmyard where it had been his duty to arouse the
household at daybreak. So standing on tip-toes he flapped his
wings and crowed lustily. But instead of awakening the farmer,
he awakened a Fox not far off in the wood. The Fox
immediately had rosy visions of a very delicious breakfast.
Hurrying to the tree where the Cock was roosting, he said
very politely:

"A hearty welcome to our woods, honored sir. I cannot tell
you how glad I am to see you here. I am quite sure we shall
become the closest of friends."

"I feel highly flattered, kind sir," replied the Cock slyly. "If
you will please go around to the door of my house at the foot
of the tree, my porter will let you in."

The hungry but unsuspecting Fox, went around the tree as he
was told, and in a twinkling the Dog had seized him.