Me either found out the hard way. Kina felt like a bee sting and about the same size whole on my finger. He's lucky I like him ..lol
Atleast is wasn't as bad as when I got it from an urchin. F
Def treat seriously. I cut my finger in my tank one and it was swollen for day. Pretty uncomfortable. The saltwater makes u a bit more prone to infection. My finger was a bit worse tho. Idk if hammer did something like that.