You are correct, Mike. No, you don't pee on the sea urchin, you pee on your foot that got stung by the sea urchin.But, usually, when Filipinos go to the beach, they bring barbecue to be dipped in vinegar, so chances are there's vinegar around - so it is more practical to soak it with vinegar after you pull out any spikes that are sticking out. But, I have to tell ya, it hurts like you won't believe!