## A billboard of signed school leavers' shirts has appeared in London, and the messages aren't what you'd expect In a campaign for Everyone's Invited, Don't Panic has pinned real school leavers' shirts to a billboard, each one carrying a young person's handwritten testimony of AI-enabled sexual harm. When you leave school here in the UK, there's a beloved tradition: everyone signs each other's white shirts to celebrate the occasion. Yes, there'll be banter and silliness. Sometimes heartfelt best wishes. A talented lass with a biro might draw something meaningful. You'll look back on those…