I agree with Chuck that your looking for a problem to match a solution,
but if you're all that concerned, why not take a stone and/or some
sandpaper and remove the finish from whatever hooks you are using.

Hey, that's a great idea! But to really do it right, we need to take
it a couple of steps further: Remove all the finish from the hooks and
set them in a bucket of water. Remove them from the water, but don't dry
them out. Just set them out in the elements for a while. Then put them in
an air-tight flybox (can't have any moisture escaping) until you're ready
to fish with them. (For best results, I'd recommend leaving them for a
year or two in this condition.)

Then when you actually hook something, given their rusted condition,
they'll likely break, and not only will the fish get away, but what's left
of the hook should be well-on-the-way to total disintegration.

Of course we'd have to come up with a name for them. Hmmm ... Slo
Corrode ... Pre Corrode ... Tru Corrode?

Save yourself the trouble and have a certain North Cakalaky fly shop owner
tie one one of his special flies for you. You'll never have to worry about
leaving the fly in a fish.

--
Frank Reid
Euthanize to respond