“Doctor,” said the woman, “every night my son dreams he's a chicken, and then he starts acting like one. 20 , he flaps his arms like wings, puts his head down to the ground, and starts eating bugs. 21 , his head goes back and forth when he walks. 22 , he even comes into my room and wakes me up at dawn.” “This isvery serious,” said the doctor. “You should bring him to me at once. 23 , he might develop otherstrange behaviors, 24 building a nest.” “OK, Doctor,” said the woman. “But I'm going to miss the eggs.”