This would be a dreary day to be a fish in Lincoln Park's South Pond, what with the poison in the water and the sight of hundreds of your fish colleagues slowly floating to the surface. So if you're reading this, be thankful you're not a black crappie or a largemouth bass. But, for the sake of those that went belly up on Friday to make way for a $12 million pond restoration project, ponder for a moment this age-old question: Do fish feel pain?