We had a nice test at school, which asked us if we smoke, get drunk, then they listed every single kind of drug in existence (heroin, cocaine, ecstasy, etc, etc.) and asked millions of questions if we have used them or regularly use them, then they listed symptoms of being addicted to the computer, if we've had sex in the past 12 months, and if we regret it, and so on.
All that in only 16 pages.