I couldn't bear to see them suffer. None of my fish have ever hurt me. I held the decoration underwater, cut with wire cutters, back under the water, more cutting. To get the raphael out of the drift wood took 6 hours. Then four months in the Q tank to regrow her fins that were damaged. I picked her up almost daily to look at her (I clamped her pectorals next to her sides with my thumb and forefinger -- safer than a net where they get stuck). Now she doesn't even twitch when I pick her up.
The raphaels could hurt if they clamped your fingers with their fins, and I got stuck by an injured yoyo once, but nothing serious. My tiretrack eel is big enough to give a serious bite, but it doesn't occur to her. I guess I know the danger each one possess, and I just take steps to make sure they don't accidently hurt me and I try never to hurt them.
I am a relatively new fish keeper (five years), and unfortunately, my fish and I learn from my mistakes. I am also not scared of much. I caught fish and crawdads by hand as a kid, and I still shoo snakes off the road including venomous ones. Two weeks ago I picked up an alligator snapping turtle to take her off the road. She could have seriously hurt me.
And Tay, forgive me for going off topic with your thread. I love your yoyos!

Tanja