The Absolute Wrong Way to Handle a Crab! Living on a Sailboat Learning Curve

I am living my dream, on a sailboat on the Pacific Coast. One nigh on the dock of the marina with a powerful light and a small net, exploring the flora and fauna of the Pacific. Learning to identify species and their food value. This is a Kelp Crab. Supposedly good eating, albeit quite small. This one went back to it's home.