Perhaps a bit off topic but the discussion does remind me of this.
http://www.abc.net.au/news/stories/2...10/3134682.htm
In this case all the teenagers learnt some valuable lessons and perhaps the fact that the boy was caught prevented him committing a bigger crime. Further to Marc's comment, I know I did things on public phones I wouldn't have done at home (nothing serious - phone information and ask how many bolts in the Sydney Harbour Bridge) so the issue of prevention is relevant. Perhaps this is just an old conundrum with new technology?