Vaping has become wildly popular in UK prisons with 65,000 refill and e-cigarettes sales in jails every week. The Ministry of Justice allowed vaping in cells after last year’s smoking ban sparked riots in several prisons and now 33,000 prisoners are get their nicotine fix through e-cigarettes. Prisoners have to buy flavoured liquid for their vapes and jail shops have been doing a roaring trade, however, there have been reports of mind-bending substances like spice being squirted in the machines.