Fish Cleaning and disposal

[lucabrasi]

After reading a reply to a post I am now very curious. What IS the proper way to dispose of fish entrails when you clean your fish on the bank. My grandpa taught me to throw them back in the river. I just thought that meant the lake too. He also kept everything he caught and even speared salmon back in those days it was allowed. Then people have told me over the years thats not what you do, you throw them aside. I know the birds and other critters can get them that way. I have heard people say both. What is the issue with putting them back in the water if this is not desirable? Also would the same go for a filleted fish? What do you do with the carcass?
I am sure it could be the Game Wardens personal outlook or attitude if he saw you doing one or the other but what is the "proper" way to dispose of them?
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