I guess you're hard to please. What about this story:
Me and my friend had a presentation for Biology. We were researching Neurofibromatosis. On one of the slides titled "treatment" I put down "there is no treatment except for medical cocaine". Because I was sick me and my friend had to present today during lunch. It was a joke and I forgot to remove it from the slide. My friend read the slide and turned purple, he was laughing so hard. My teacher was like "I didn't know there was medical cocaine". It was actually pretty funny.