Depends upon the ages of the "children". I had Net Nanny when was son was much younger. He and his friends at school developed a hack program that they used to disable the protocols from the DOS prompt in Safe Mode. They are not infallable. If my wife installed Net Nanny on my computer without my permission I would be instantly reformating and Admin blocking her from my puter........he must have agreed so he could overcome his Ebay or porn addiction.
Noli Nothis Permittere Te Terere!!
EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.