The professor is quietly reading his morning paper when he feels annoyed by boys playing in the same park. He scolds them and they plan a revenge. One og them sticks a sign on his back saying "painted". As he goes on his way he meets several people who finds him embarrassing. He notices the sign, gets rids of it, but is now follow by a gang of all the people he has encountered during the day. The police is about to grab him when he manages to jump on a passing carriage.