Shopper Fufu Fang, 30, couldn’t believe it when staff from Tesco wanted to see his ID when he tried to buy sausage from a Tesco store in Fulbourn, ner CambridgeShopper Fufu Fang, 30, couldn’t believe it when staff from Tesco wanted to see his ID when he tried to buy sausage from a Tesco store in Fulbourn, ner Cambridge