Yes, those are idiot holes in the canopy - it is an unmonitored range, so morons can and will do stupid things. The city does a great job maintaining it with what they have, but sometimes...it is MUCH better than it used to be, however. Did I mention that it is completely free?
Thanks John, had fun doing it, was a positively wintery 106 on the firing line and I forgot my sweater...terrible...
HST, you're the first to get all the way through - I always try to put something after the credits just for fun, and yes, I do like the band Nickleback.