As a journalist who investigates human rights abuses and conflict in countries that can be tricky to operate in, Ramita Navai is good at compartmentalising the trauma she's seen and feels mentally resilient. But when her own father died three years ago, she was - and still is - overwhelmed by the grief. She talks to bestselling author and friend, Richard Osman about his experience of grieving for his estranged father compared with her own. Produced by Caitlin Hobbs for BBC Audio.