The late Gerry O’Sullivan was a pioneer in the field of cancer research. But he had a playful side, too, his daughter Orla Dolan recalls for Helen O’Callaghan

He has parachuted into some of the most inhospitable places on Earth, eaten bugs, snakes, and piranha, and slept in the stinking carcass of a dead camel.

Orla Dolan of Breakthrough Cancer Research tells Niamh Hennessy about her day.