Fireworks spoiled by nincompoops

We had a pretty great Fourth of July BBQ with friends, when we decided to walk to a nearby park and enjoy the fireworks being put on at the Shoreline Amphitheater. We thought we'd save ourselves some effort and watch from a nearby park (Whisman Sport's Complex) instead of walking all the way to the park (which would be much too crowded for driving) ... well, there was a group of idiots that thought the professional display was not enough, and they were letting off fireworks about 20 feet from a large group of people. Several of their fireworks misfired and exploded on the ground. Children were screaming and crying... yet they did not relent. They continued to let them off right near the main entrance of the park.  Some of our group had to leave early due how scared they were being so close - out of a nearly hidden back exit.  As far as I know, you're not supposed to let off fireworks in a park like that.  Who knows - but next year, we'll do the full walk to Shoreline, which is nicely policed, and enjoy the professional show without fear of injury from the amateurs. [Note: according to the Mountain View Voice, all fireworks are illegal in Mountain View]