Games ban would work - but would be unfair on his younger brother who he shares the consoles with. Younger brother is of course learning from all his bros mistakes, like my kid brother did.
although unfair (in a kevin and perry kind of way) - this would be quite effective - the pressure from the younger brother for him to do right so they can both play on the console would double your efforts with one decision.
if you take too much away from him in one go, he may become too resistive to your actions and the message would be lost.
so week 1 = games ban, week 2 - (if no improvement), games ban plus money taken away...etc etc, gives him the foresight of the consequences to his actions which should help motivate him to give a sh*t.
children are over-stimulated and under-motiviated these days (although teens make a good case for acting/looking under-stimulated most of the time).
i've got another 10 1/2 years before my son hits the teens.
god knows what kind of expectations he'll have then comapred to teens these days!
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