It wasn’t until Ali tried to sell the cooking gas canister he had stolen from his parents’ stove that he realised it was drugs that were consuming him – not the other way around. The 27-year-old Iraqi had already sold his mobile phone, chairs, bed, even the very mattress he slept on to buy just a few more grams of crystal meth. The last item left was this battered canister, but even that wouldn’t fetch enough to cover the cost of a fix. Feverish.