We have the same problem with rocks too .....
It seems that we haven't learned that by publishing stories like this in the news papers and on the internet that it's going to encourage other kids to do the same exact thing.
We've got a similar problem with kids throwing rocks off overpasses on freeways.
There has been heaps in the news about this, but it still keeps happening - why? because most kids are idiots and think that doing shit like that is cool.
Is it their fault? Unfortunately most of the time it isn't, they are products of a society that thinks publishing every single thing that happens (good or bad) is a great thing.
We now have extremely large wire mesh screens on the sides of most overpasses in Australia, does this stop them - NO!
They just learn how to throw things harder and higher to get over them.
The best way to deal with this shit is by punishing the idiots in the first place - not by telling everyone that it's happening and that they can't catch the culprits.
To me (if I was a kid) that would be a green light to go F*%K shit up, especially if it's so hard to get caught - the same thing is going to happen with green lasers (just wait and see how many get sold (and used innapropriately) in the next few weeks).
It is unfortunate that we cannot make kids see the errors of their ways until it's too late, but that's what being a kid is all about - learning from mistakes, sometimes BIG mistakes.
I don't know if it's because we came from convict backgrounds but as soon as anything becomes 'uncontrollable' in this country we think it's time to add further restrictions and lock it down more.
I don't know about the rest of the aussies but that just makes me want 'it' more, and time after time again I see this approach not working at all, in any way.
Bah, that's my two cents ...