There were two marines who were trying to assemble their rifles as fast as possible for a competition. One of them got so nervous that he put the magazine in backwards. When he tried to fire (obviously it didn't work), he looked at his rifle in complete confusion. His teammate burst out laughing and that broke his concentration even more. It was quite a comical sight.
There was a captain who had a parrot on his ship. The parrot would mimic the captain's orders. One day, when the captain shouted 'All hands on deck!', the parrot repeated it so many times that all the sailors were running around in circles not knowing which 'order' was the real one. It led to a lot of chaos and laughter on the ship.
A man went to the dentist with a toothache. When the dentist checked, he found a small piece of popcorn kernel stuck between his teeth for weeks. The man had no idea how it got there. It was really funny.
I heard of a snowman that was built near a pond. A duck came along and thought the snowman was a new kind of strange 'creature'. The duck waddled around the snowman quacking in confusion, which was quite hilarious.
A landlord once accidentally locked himself out of the building while doing an inspection. He had to call a locksmith and wait outside in the rain for an hour. All the tenants were peeking out the windows, giggling at his misfortune.
There was a time when a butterfly flew into a barber shop. It landed on the barber's comb. The barber was so surprised that he just stood there for a moment. The customers were all amused by this unexpected visitor. Then the butterfly flew around the shop, making everyone laugh as it dodged the scissors and razors in a comical way. This went on for a few minutes until it finally flew out.
A little girl once tried to make a bread that would look like her pet dog. She used a lot of creativity with the dough, and though it didn't really look like the dog, it was so cute and funny that her parents took pictures.
A patient once fell asleep during a long orthodontic procedure. And when he woke up, he thought he was at a different place entirely. He started asking the orthodontist if he was in a spaceship because of all the strange tools around him. The orthodontist found it really funny and had to gently bring him back to reality.
I know a story where a cop was doing a routine patrol in a park. He saw a man sitting on a bench with a big bag. When he went to check, it was full of squirrels. The man thought he was rescuing them from a construction site but didn't realize it was illegal. The cop had to explain the situation and help release the squirrels back into the park properly. It was really funny to see the man's face when he realized his mistake.
Well, in a hot summer day, I saw a mosquito trying to bite a lizard. But the lizard's skin was too tough for it. The mosquito kept poking around and the lizard just looked at it like it was the silliest thing ever. It was quite a funny sight.
A funny hornet story I know is that a hornet accidentally flew into a car through an open window. It then started buzzing around the driver's head, and the driver was so startled that he swerved the car a bit. But then the hornet got tired and just landed on the dashboard. The driver was able to gently shoo it out through the window later.