God, I hate to do this!!!

But I think the prof has it wrong. I used to keep an aquarium and once in a while, if I didn' t keep the water clean, the fish would rub themselves on the rocks. They did this to relieve themselves of the itchy parrasites on their scales. If they can feel itching it would follow that they can feel pain.

As for PETA...They lose every time they open their mouths. How anyone could give these idiots money is beyond me. If they had even a small clue as to what they were talking about they would be something worth worrying about. But they don' t and one day they' ll be just another group of people we' ll look back on and laugh about.