A dad who had a heart attack at the wheel says his sons would have been left without a dad if it wasn’t for the fast actions of a kind samaritan. Glenn Smith crashed his car through railings and into a tree on a busy roundabout after losing consciousness. The 58-year-old, from Maidstone, had been driving home from lunch with his mum, with his 18-year-old son Ethan, when he suddenly became unwell. His sudden medical episode resulted in his car “ploughing” off the road at the junction of Sandling Road and Lower Boxley Road, in Maidstone, on June 15. Lena Dalton, a 29-year-old chemotherapy nurse,…