@aviationdoctor.eth
A touching anecdote on how freediving legend Enzo Maiorca (of The Big Blue fame) quit spearfishing in 1967:
> It all happened suddenly. I was diving in the shallows not far from the cape that reaches out to the open sea south of the bay of Syracuse. That morning I happened to spear a grouper. A strong and combative grouper. On the bottom a real titanic struggle broke out, between me who wanted to take its life and the grouper who tried to save itself. The grouper was caught in a cavity between two rocks; trying to understand its position, I ran my right hand down the fish's belly. Its heart was pounding in terror, mad with fear. And with that pulsing of blood I realized that I was killing a living being. Since then my speargun lies like a derelict, an archaeological item, in the dusty basement of my house.
From https://www.saivivere.it/contenuti-tematiche/natura-ed-ecologia/item/393-la-storia-di-enzo-maiorca