Todd, been thinking about your question. We have all seen it, will see it again. I would not recommend saying anything. Unfortunately, there is nothing illegal being done here.
I have to admit that I was that person you watched many, many years ago. I did the picture on every fish thing, dropped fish on a dirty floor, released injured fish. That person will hopefully grow into someone who sees the errors of his ways. Saying something may just urine the guy off. The best thing to do is set a good example.
For now – just don’t watch!
J.