PJ, it's no laughing matter. Some people go completely overboard and get hooked on cyber porn. An overseas friend of mine has watched her marriage go down the drain as her hubby has become addicted to Internet pornography. He used to try and block the screen from her view, and stay up after she had gone to bed; now, he's degenerated to the point where he's downloading MPEGs to CD-ROM while she and the kids watch TV. It's a horrible story. Matter of fact if anyone has any advice, I'd appreciate hearing it, because the poor woman is at her wit's end.
People will not change their behaviors unless they want to do so...and they'll rationalize their behaviors to the ends of the earth in order to justify engaging in their pursuits. (Check out the arguments on this thread.)