A student was up all night studying for an exam. In the morning, he was so tired that he walked into the wrong classroom. He sat down, put his books out, and was ready to start the 'exam' when he realized it was a completely different subject. His face was priceless, and it became a very funny tired story among his classmates.
Well, there was this time when my friend was extremely tired after a long hike. When we got back to the campsite, he was so out of it. He tried to put his sleeping bag on top of a tree stump thinking it was his tent. We all had a great laugh about it later. It was a really funny tired moment.
Sure. One funny tired story is about a man who worked a double shift at his job. He was so tired on his way home that he got on the wrong bus. He didn't realize until the bus was far from his home. Instead of getting angry, he just laughed at himself and told the story to his friends later as a really funny experience.