Charlie and Jason are at the zoo...

...And Jason decided he wanted to see the gorillas. Charlie decided he wants to see the naked mole rats, so they go their separate ways.

Jason walked up to the gorilla cage to see the gorilla staring at him. Jason laughed and waved at the animal jokingly. To his surprise, the gorilla waved back! Jason, surprised, jokingly crossed his eyes. The gorilla did the exact same thing. Laughing, Jason stuck out his tongue.

The gorilla went absolutely apeshit (pun intended) and started screeching at the top of his lungs. He burst open the bars of his cage, grabbed Jason, and threw him against the cement. Only when the zookeeper found them did the gorilla give up.

Charlie, caring for the life of his friend, asked the zookeeper what happened. The zookeeper explained that in gorilla language, sticking out your tongue is the equivalent of flipping someone off.

Two months later, Jason was out of the hospital, and very pissed. Charlie explained what happened, and Jason decided on revenge. Jason stormed home and got a sledgehammer, along with his 3-year-old son's plastic toy hammer. Then, he headed straight to the zoo.

Once he reached the gorilla cage, he sat the sledgehammer down in the gorilla's cage and picked up the toy hammer. The gorilla picked up the sledgehammer, mimicking Jason. Jason raised the hammer above his head, and so did the gorilla. Jason made a face, and the gorilla made the same face. Then, Jason hit himself in the head with the toy hammer.

The gorilla paused, then stuck out his tongue.