Marshtomp
Eat your vegetables
"C'mon, they're good for you!" the trainer pleaded. He got knelt and offered the remaining dinner contents to his Marshtomp. It backed up into the corner and moaned, shaking slightly for good measure as it ignored its trainer's coaxing.
His roommate looked up from his book. "I told you not to use him in the Grass-type Gym after he evolved," he berated. "You probably scared him off plants for life now."
The trainer persisted. "Look, they're tasty!" He took a bite from one before violently spitting it out.
"It's Pokéfood, not people food." He turned back to his reading. "Idiot."