There was a Porcupine fish in my path...

The Porcupine fish is a fish widely found in Brazil. They have the ability to inflate their bodies by swallowing water or air; they do this when they feel threatened.. They have sharp spines as a second defense mechanism and some species are poisonous.
I was diving in Arraial do Cabo (Brazil) when one approached, staring at me and blocking my path...He was angry or curious? I don't know the answer but he is beautiful anyway.