A GRANDFATHER has hit out at residents of a housing complex who are making his life a misery. The pensioner, 76, who asked to remain anonymous, said drug users and thugs are causing him serious safety concerns at Nursery Flats, Southchurch Road, Southend. He said: “There are people coming and going at all times and having fights and causing disruption. I can’t take anymore. “There is a strong smell of cannabis coming from one of the homes and we can smell it in our flat, that’s not on.