A schoolgirl's precocious note accusing her teacher of committing war crimes banned under the Geneva Conventions has gone viral.
Ava Cross, 11, wrote on a feedback form asking what the teacher could do better: "Not use collective punishment as it is not fair on the many people who did nothing wrong and under the 1949 Geneva Conventions it is a war crime."
Her father Mason, an author from Glasgow, shared the hilarious note on Twitter, where it has had more than 160,000 retweets and half a million likes.
"My daughter actually submitted this feedback at school," he wrote. "Not sure if I should ground her or buy her ice cream..."