Mylar Balloon Adds Spark to Graduation by smokeshowing Via Flickr: June means high school graduation ceremonies at the San José Municipal Rose Garden, but during one of those commencements students got more than just diplomas. As the graduates made that memorable walk across the stage heavy black smoke could be seen rising from a truck on fire across the street from the park. The culprit? A celebratory mylar balloon that had escaped its owner, landing on high voltage electrical lines, with one of those lines falling directly onto a truck owned by the company providing sound for the graduation ceremonies. With fire consuming the back of the truck the ceremony continued with the sound of sirens approaching the scene. San José Firefighters arrived on scene and quickly extinguished the blaze while working with San José Police to secure the area and prevent pedestrians and vehicles from traveling on Hadley Avenue. Thankfully there were no injuries to either public safety officials or citizens. emergencyphoto.zenfolio.com/