DPP v K [1990] 1 WLR 1067 FACTS: K was 15. He splashed some acid on to his hand during a chemistry lesson and he asked for permission to go and wash his hand because it was sore. He took with him a boiling tube of concentrated acid. He poured some of the acid onto a piece of paper, but hearing footsteps outside, he panicked and poured the rest of the acid into the upturned nozzle of a hot air hand/face drier. The footsteps receded and he re-joined the chemistry lesson intending to return later to deal with the acid in the drier. Another pupil used the drier and the acid was ejected on to his face, causing scarring. HELD: Although he was acquitted because of a lack of mens rea, the Court of Appeal stated that this had satisfied the actus reus of battery.