It's good to be in control

All the rational parts of me want to run screaming from the People's Network. The latest twist is that the young scamps at Roadkill Library have learned that if they enter the search string "Simpsons porn" in Google Images they can get rude cartoons that frighten the horses.

The solution, obviously, is to change the safe search settings to filter these out. Great, except that the settings get wiped whenever a PC's rebooted (we've got DeepFreeze on all our public PCs because we got fed up of cleaning them up twice a day). This is get-round-able, but not by me.

I have the same permissions as the public.