I like both salmon and trout but have never fished. I can understand how it would be aesthetically displeasing to find fag ends in the fishes' guts but is it dangerous to eat a fish which has swallowed them? Does the nicotine get into their blood stream and stay there or is it excreted fairly quickly? I really don't know but that, I believe, would be the point that would stop me eating the fish. I think we would have heard about it if it was dangerous to our health, we hear about everything else, the slightest thing in fact.