let him establishing his own business.. you will see, he will not only stop chatting on line, he will not only forget all his passwords to all these idiotic sites, he will not only stop seeing his friends...he won't have enough time for even eating and sleeping properly... and of course he will start making much more money.. beneficial for the whole family..
trust me, i know what i am talking about...:)

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“You become responsible forever for what you have tamed”. Antoine de Saint-Exupéry