Would think it takes a whole lot to break off one of those spines.
Back before I saw the light, I used to purposely fish for those nasty things. Old man I fished with dropped one about waist high. Pectoral stuck in his calf like a lawn dart. He jerked it out, rubbed some slime off the fish, rubbed it on the wound. I was speechless, thought hes gonna lose that leg. He passed a couple years back, still had both legs.
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