It was a hot summer day and all the animals in the forest were feeling a bit grumpy and irritable. The heat was making them all sweat and they were having a hard time finding any shade to cool off in. But there was one animal who was not affected by the heat at all. His name was Chuckles the Chipmunk and he was always in a good mood, no matter what the weather was like. Chuckles was known throughout the forest as the happiest and most carefree animal around. So when the other animals saw Chuckles skipping through the forest with a big grin on his face, they couldn't help but feel a little bit jealous. "What's so funny, Chuckles?" asked one of the animals. "Oh, nothing really," Chuckles replied with a chuckle. "I was just thinking about a joke I heard yesterday and it's still making me laugh." The other animals were curious and begged Chuckles to tell them the joke. Chuckles hesitated for a moment, but then he decided to oblige. "Okay, ok...