If you give him a bad dream...

A Drowzee stared at the dozing human listlessly. This was the fourth day the humans had locked him in a white room, with only this human's dream to eat. No way he was eating the dream. The dream was so boring, even looking at it made him puke.

...But he had to.

With no dreams, he would starve to death. But if he ate such a low-quality dream, there was no telling what kind of tantrum he would throw. Drowzee stared at the human, sucked in a deep breath, and started to eat that repulsing dream. Drowzee felt rage boil in him as he slowly sucked the dream through his nose. This... the humans forced him to eat this... this filth! Drowzee trembled in rage. Everyone would pay for this.

(POV Change to scientist)

Dr Gray watched, satisfied, as the Drowzee finally crumbled and ate the dream. It was said that Drowzees loved fun dreams. What would happen if they gave him a dream he loathed?

Dr Gray smiled, licking his lips as he picked up a pencil. Thinking, he finally scrawled on a blank paper a few words. "Drowzee ate the dream," he muttered softly to himself. Now it was time for the real work to begin.

(POV Change to Drowzee)

Drowzee itched to rip the human's flesh right now. He thirsted for blood to spill. No, Drowzee silently told himself. There will be greater rewards if you just wait.

Drowzee retreated to a corner, trying to control himself. Soon, more humans would come. Then kill. Drowzee heard the click of something, and a door swung open to reveal a couple of blank-faced humans. No Pokemon was protecting them.

The humans walked slowly towards Drowzee, while he tensed. The humans surveyed him for a moment, before one of them took a syringe out. The syringe was filled with a deep purple liquid, seeming to slow menacingly. "No reaction. This Drowzee is a failure," one of them muttered, while the other stepped even closer towards the Pokemon.

Failure? That word thundered through Drowzee's mind. Roaring in fury, Drowzee charged towards them, releasing all the rage and hatred he ever had.

~Hours later~

A Drowzee ambled away, humming cheerfully, while a demolished building stood behind him. The building has corpses scattered around it, while some torn papers were carried away by the breeze.

Drowzee licked his hands and three fingers carefully. Maybe he could try drinking more of this sweet blood next time.

...Never give a Drowzee a bad dream.