On Saturday, Aug. 9, more than 40,000 people descended upon Montreal's Parc Jean-Drapeau for the first day of Heavy Montreal, North America's biggest heavy metal festival. The main draw was headliner Metallica; respected veterans in Anthrax, Voivod and Overkill; and upstarts like Municipal Waste and Protest the Hero featured on the eclectic undercard. Early in the day though, it was a performance