Children as young as four were accidentally sprayed with hot chilli riot spray by police during a school visit.
Officers from Gwent Police visited Gilfach Fargoed primary school, in Bargoed, Caerphilly county, and gave a lesson on equipment used by the force on Wednesday.
But instead of demonstrating a mock PAVA spray, which replaced CS spray, officers discharged a real canister causing panic among the infants.
The spray, used on eight pupils aged four and five, causes the eyes to close and is extremely painful.
Well done I say, well done.