A selfless pensioner offered to buy a stranger a car after hers was allegedly smashed into by a teen driver.Daily Record reader William Mullen from Shotts spotted a story in the paper about a nurse who was left in tears over the accident.The 69-year-old wanted to help the single mum-of-four Maggie Gangel who was stuck with no way to get shopping for her family.The big hearted OAP immediately started looking into buying a silver Renault Clio for the 47-year-old mother.William said: “I read the story about Maggie and thought it was unfair.“She had just finished a 12 hour shift and had another one and had that happen to her, she was really put out on a limb.“I wanted to help her out and do something good so I spoke to my local garage and saw