There is a story about a Necron tomb world awakening. But instead of the usual menacing emergence, one of the Necron warriors got stuck in the opening of his sarcophagus and just flailed around while his comrades tried to figure out how to free him. It was a rather comical sight in the midst of all that supposed doom and gloom.
One funny Warhammer 40k story is about an Ork Mekboy who tried to 'improve' a Dreadnought. He ended up adding so many random parts that the Dreadnought looked like a walking junkyard. It was hilarious when it tried to move and parts kept falling off during battle.
An Ork named Grotbag once challenged a much bigger Ork to a fight for leadership of their small mob. Grotbag was tiny but full of spunk. He started the fight by throwing a squig at the big Ork. The squig latched onto the big Ork's face and started biting. While the big Ork was distracted trying to get the squig off, Grotbag jumped on his back and hit him over the head with a stick until the big Ork conceded. The other Orks found this hilarious and Grotbag became their new leader.
Sure. There was this one story where a Guardsman accidentally fired his lasgun into the air during a parade. Instead of getting in trouble, the officer just laughed it off as a 'new form of salute'.
The story of the Tau and their attempts at peaceful co - existence in a brutal universe. Despite their good intentions, they face constant opposition from more aggressive races. They often see their colonies destroyed and their people killed. It's sad to see a race that just wants peace have to endure so much violence.
A methhead tried to wash his clothes in the dishwasher. He thought it was a great idea since it used water and soap. But all he got was a ruined dishwasher and clothes full of soap suds. He couldn't understand why it didn't work.
There was this one time when a young man got on the megabus with a huge backpack that was almost as big as him. He struggled to find a place to put it and ended up with it on his lap for half of the journey. Every time the bus jolted, he would be pushed forward by the backpack, which looked really comical.
Well, there was this one time when an inmate accidentally dyed his hair bright pink while trying to make some homemade ink. He thought he could write secret messages with the stuff he made, but instead, he ended up looking like a flamingo. It was really funny, and all the other inmates couldn't stop teasing him about it.
A really funny 911 call story is about a guy who called because he thought his microwave was trying to communicate with him. It made some beeping sounds that he misinterpreted. Also, there was a person who called 911 because they saw a 'ghost' in their attic. It was just an old sheet that had blown up there. It was quite comical when the operator had to explain that to them.
One hilarious story is that a photographer was in the woods trying to capture pictures of wildlife. He thought he saw a sasquatch and started taking pictures like crazy. When he developed the photos, it was just a big, hairy log that had a strange shape from a certain angle.
In another IMDB - related funny story, a group of extras were supposed to be running away from a monster in a horror film. But one of the extras tripped and caused a domino effect, with all the other extras falling down like a row of bowling pins. The director found it so hilarious that he changed the scene to make it look like it was part of the movie's humor.