Once upon a time there was an old mother pig who had three little pigs and not enough food to feed them. So when they were old enough, she sent them out into the world to seek their fortunes.

The first little pig had major depression. He had no motivation to do anything and he was always sad,  so he built his house out of straw.

One day this pig went home to see his mother, who is also a psychiatrist, a psychologist able to diagnose and prescribe treatments, who worked from the biological perspective.

She prescribed him antidepressant drugs, and even gave him ECT.

The treatment worked for a while, but then the pig’s depression came back.

The second little pig worked a little bit harder and he built his house out of sticks.

This pig is not suffering from any psychological ailments.

The third little pig worked hard all day and built his house with bricks. It was a sturdy house complete with a fine fireplace and chimney. It looked like it could withstand the strongest winds. This pig was suffering from narcissistic personality disorder, and thought he was the best and smartest pig ever because he made the best house.

This pig went to go see the mommy pig to brag about his house, and she diagnosed him with narcissistic personality disorder, and gave him drugs to curb his narcissism.

The next day, a wolf happened to pass by the lane where the three little pigs lived; and he saw the straw house, and he smelled the pig inside, using the olfactory bulb in his brain. He thought the pig would make a mighty fine meal and his mouth began to water.

The big bad wolf is a serial killer, who suffers from antisocial personality disorder.

So he knocked on the door and said:

  "Little pig! Little pig!

   Let me in! Let me in!"

But the little pig saw the wolf's big paws through the keyhole, so he answered back with a heavy sigh:

“Okay... I have no will to live anyway”

So the wolf started savagely attacking the pig.

“HELPPPP! I DON’T WANT TO DIE!” screamed the pig.

His neighbors could definitely hear the cries for help, but did nothing, because of the bystander effect.

However, the pig’s sympathetic nervous system kicked in, allowing him to faster than he ever ran to the next pigs house.

The wolf continued down the lane and he passed by the second house made of sticks; and he saw the house, and he smelled the pigs inside, and his mouth began to water as he thought about the fine dinner they would make.

So he knocked on the door and said:

  "Little pigs! Little pigs!

   Let me in! Let me in!"

But the little pigs saw the wolf's pointy ears through the keyhole, so they answered back:

  "No! No! No!

   Not by the hairs on our chinny chin chins!"

So the wolf showed his teeth and said:

  "Then I'll huff

   and I'll puff

   and I'll blow your house down."

So he huffed and he puffed and he blew the house down!