Warning: what follows may not be for the squeamish. However, it may also contain some useful information for people who care for dogs.
I took my dog, Meeka, walking down by the river last night, off leash. Nobody else was around and she had a great time running back and forth and in and out of the water. Unfortunately, she got into a bunch of discarded old fish parts on the beach and ingested some of it before I was able to get hold of her.