Most of us, we would like to think, would help out a relative, a friend and perhaps even a stranger in need. Maybe giving directions or lending a few quid. But how many of us would donate one of our organs to someone we will never meet?
That is exactly what Tom Cledwyn did in 2012. Since then, his life has been shaped by acts of generosity towards strangers, culminating in Drop Dead Generous, a social experiment giving 1,000 people $500 (£378) each to spend on helping others in creative ways. Backed by an anonymous philanthropist, the project is part grant scheme, part provocation: what happens if you trust people to be generous?
Cledwyn donated his kidney at 25, after reading about Kay Mason, the first person in the UK to give a kidney to a stranger.

