I had the same experience with raccoons the one and only time I used it. I got up the next morning and my garden looked like a bunch of wild hogs had been in there--just mutilated everything!! I had just planted two new little plum trees also and used it on them too--which they tore completely out--which I promptly replanted--and they promptly tore them out again the next night. So that was the end of the fish emulsion for me.
Another product I had tough luck with is that cocoa bean shell mulch. I stacked a couple bags in the driveway one morning; came back in the afternoon and there was nothing left but a small pile with the bags chewed beyond recognition. There were a half dozen or so squirrels busy working when I drove in, tho I later found out dogs like it too.
