Tesco's iconic blue and red card offers shoppers huge savings and has been around for decades but few people know its true origins. In fact, the now-famous Clubcard only exists because a disturbed customer threatened to put his HIV-infected blood into the chain's food.
Rewind to 1995 and Frank Riolfo claimed that he had the disease and warned he would contaminate products unless they created a card to pay him a huge sum of money, reports the Mirror.
And it was his insane demands that resulted in the savers' card being launched by the retail giant. Riolfo told bosses to pay him £250,000 via the plastic card after calling the Tesco store in Kettering, Northamptonshire - when he referenced himself to be 'St Mary-Ann'.
