It's a damning insight into supermarket culture that Tesco drum into their employees the incessant need to ask whether or not each customer has a 'Clubcard'. This small coupon enables shoppers to accrue points, which they can theoretically then spend on other items, rewarding them for their loyalty. In reality, it spends the vast majority of its life left in the car, or at home, leading to literally hundreds of altercations which see you asking complete strangers if they have a small piece of plastic, then being encouraged to reprimand them because they don't. A job is a job...