When I was 10 years old, the vice principal of my school was this really tough, no-nonsense woman. She was almost like a caricature of a strict administrator. We used to do impressions...
Anyway, she was angry because people had been peeling paint off the bathroom stalls. One day I was called into her office. I sit down and she shoves towards me a piece of paper with a small paint chip taped to it.
"Do you know what this is?"
"Uh...paint from the bathroom. I didn't peel it off though." (I was telling the truth.)
She tells me the reason she called me down was because she happened to walk by the bathroom and recognized my shoes in a stall that had a paint chip on the ground. I am not kidding. That is all the "evidence" she had and she was rolling with it.
She then asks me several questions like, "what were you doing in the bathroom?" (What do you think?)
She finishes the interrogation by telling me that I can still go to the bathroom, but she's going to have the teachers keep a close eye on me and that my bathroom privileges might be limited...
(I've never been really severely punished so that's the weirdest story I have.)