There's a new reason for going downtown in London, Ontario, every weekend. This weekend, the first weekend in August, there is the Rib Fest and also the Imadon Street Painting Festival, Expressions in Chalk. Over 40 street painters are competing in the event and admission is free. Talbot Street between the JLC and Covent Garden Market was closed for the street painters, leaving lots of room for strolling gawkers. London can be a lot of fun.