This was actually one of my favourites when I was younger, yet God told me to back off considering fish needs to be cooked at least 30% before it can be eaten.
Chefs will have to grill about 1 1/2 minutes on each side, more or less, and embrace your favourite delicacies from there.
I don’t recommend people taking risks with fugu, aka blowfish, just as I avoid rhubarb. You don’t need it, anyway.