You're walking on the beach in the middle of a beautiful night with the moonlight making the sea glitter like diamonds

you walk towards the bay then unexpectedly you see someone sitting on a big rock, when you look longer, that figure is a man.. with a mermaid tail..

he looks groaning in pain because his tail is injured because it is entangled in the net

but when he sees you, he hisses and tries to scratch you

what would you do?