Every suicide is intensely sad — a despairing act of self-harm that leaves a legacy of guilt and sorrow for the victim’s family, friends and colleagues. That of Martin Senn, chief executive of Zurich Insurance until last December, is doubly resonant because it follows the suicide of Pierre Wauthier, Zurich’s chief financial officer, three years ago.

Senn, who killed himself at his Klosters holiday home last Friday, is said to have struggled to adjust to being no longer the boss of a Swiss multinational. He agreed to step down after Zurich failed to acquire the UK insurer RSA last year, and faced problems in the US and China. The company is now restructuring and cutting costs.

My reaction to his death is influenced by having suffered an episode of depression a decade ago. “Suffered” is the correct word, as anyone who has been through the experience can testify. “Episode” is the term employed by psychiatrists, as if it forms part of a rather painful soap opera. Luckily, my pilot episode did not turn into a series.