Kurzer Ausflug zum englischen Orginal ... "Every time you use an addictive substance during (11 — Addiction Rating) weeks in a row, you need to make an Addiction Test. The clock on this keeps ticking even if you skip a week, but every week you go without indulging reduces the Addiction Threshold by 1 (it returns to normal when you use again). If the threshold hits 0, you’re off the hook until you use the substance again. This means that substances with high Addiction ratings (like kamikaze) could get you hooked in a single dose."