My range has a bunch of holes in the ceiling too. I am a new shooter and try to always keep my "booger hook" off the "bang switch". I guess that's not a common train of thought for all new shooters?
What really got my attention was the bullet hole in the lane divider to the left of me. I didn't check to see if the bullet went through of not but that got me worried about whose next to me when I'm in the range. Guess they can be not as safe as you'd hope them to be.
That's a heck of an arsenal you got there. Can't wait till I can build up enough to have choices. Right now I have only one, but I still love it.