_Humor_. The child loves a joke, and the tale that is humorous is his special delight. Humor is the source of pleasure in _Billy Bobtail_, where the number of animals and the noises they make fill the tale with hilarious fun. There is most pleasing humor in _Lambikin_. Here the reckless hero frolicked about on his little tottery legs. On his way to Granny's house, as he met the Jackal, the Vulture, the Tiger, and the Wolf, giving a little frisk, he said,-- To Granny's house I go, Where I shall fatter grow, Then you can eat me so! Later, on returning, when the animals asked, "Have you seen Lambikin?" cozily settled within his Drumikin, laughing and singing to himself, he called out slyly-- Lost in the forest, and so are you, On, little Drumikin! Tum-pa, turn-too! Humor is the charm, too, of Andersen's _Snow Man_. Here the child can identify himself with the Dog and thereby join in the sport which the Dog makes at the Snow Man's expense, just as if he himself were enlightening the Snow Man about the Sun, the Moon, and the Stove. There is most delightful humor in _The Cat and the Mouse in Partnership_, where the Cat has the face to play upon the credulity of the poor housekeeper Mouse, who always "stayed at home and did not go out into the daytime." Returning home from his ventures abroad he named the first kitten Top-Off, the second one Half-Out, and the third one All-Out; while instead of having attended the christening of each, as he pretended, he secretly had been visiting the jar of fat he had placed for safe-keeping in the church. _Poetic justice_. Emotional satisfaction and moral satisfaction based on emotional instinct appeal to the child. He pities the plight of the animals in the _Bremen Town Musicians_, and he wants them to find a refuge, a safe home. He is glad that the robbers are chased out, his sense of right and wrong is satisfied. Poetic justice suits him. This is one reason why fairy tales make a more definite impression often than life--because in the tale the retribution follows the act so swiftly that the child may see it, while in life "the mills of the gods grind slowly," and even the adult who looks cannot see them grind. The child wants Cinderella to gain the reward for her goodness; and he wishes the worthy Shoemaker and his Wife, in the _Elves and the Shoemaker_, to get the riches their industry deserves.