Tell me a very funny story about animals.

There was a story of a lazy donkey. The donkey's owner wanted it to work in the fields. But the donkey always found excuses. One day, it pretended to be sick. The owner called the vet. The vet said there was only one cure - to make the donkey run around the field ten times. As soon as the vet left, the donkey started running so fast as if it was never sick. It's really funny how the donkey tricked itself in the end.

A cat went to the vet. The vet said, 'Your cat is just fat.' The cat hissed, 'I'm not fat, I'm just big - boned!'

A little mouse once found a pair of sunglasses. He put them on and suddenly thought he was the toughest mouse in the world. He strutted around in front of the other mice, challenging them to races and contests. He even walked right up to the cat's bowl while the cat was sleeping and took a piece of food. When the cat woke up and saw this mouse with sunglasses acting all brave, the cat was so startled that it ran away. The other mice couldn't believe it and from then on, the mouse with the sunglasses was their hero.

A cat and a dog were arguing about who was the smartest. The dog said, 'I can do tricks like sit, stay, and roll over.' The cat replied, 'That's nothing. I can make people open doors for me, feed me, and clean my litter box without even asking.'

A group of ducks were walking in a line. The first duck said, 'Quack.' The second duck said, 'Quack.' But the third duck said, 'I'm not following this stupid 'quack' thing.' The first two ducks looked at him and said, 'Then you're not a real duck!' and they walked away. The third duck thought for a moment and then ran after them shouting, 'Wait, I'm a quack!'

There was a little puppy. It got lost in the park. Instead of being scared, it wagged its tail and started following a group of ducks. The ducks were a bit confused at first but then just let the puppy tag along. Eventually, the puppy's owner found it while following the trail of the ducks and the puppy. It was a funny sight and the puppy's optimistic attitude made it an adventure.

A dog and a cat were friends. One day, they decided to have a race. The dog was confident. But as soon as the race started, the dog saw a squirrel. He immediately chased the squirrel instead of running the race. The cat, being smarter, just kept going and won the race. When the dog finally remembered the race, he came back and said, 'Hey, that squirrel was a cheater!'

A duck once walked into a store. It went straight to the toy section and started playing with a rubber duck. The store owner was so shocked that he just watched as the duck quacked happily among the toys for a good ten minutes before waddling out.

There was a dog that loved to chase its tail. One day, it chased its tail so much that it got dizzy and ran straight into a bush. It came out looking all disheveled with leaves and twigs stuck in its fur. It was so funny.

There was a little mouse who thought he was a lion. In the first paragraph, he strutted around the mouse hole, trying to roar like a lion. It came out as a squeak. In the second paragraph, he decided to go hunting. He saw a crumb and pounced on it as if it was a big antelope. In the third paragraph, he tried to mark his territory like a lion, but all he could do was leave a little pee mark. In the fourth paragraph, when a real cat showed up, instead of running away, he stood his ground and tried to scare the cat with his tiny paws. The cat just looked at him amused. In the fifth paragraph, he finally realized he was just a mouse and scurried back into his hole.