Sketches By Grandville: Fishing / La Pêche

Caption:
J'y a fait de bien mauvais vers, mais je n'y ai jamais pris de poisson.


I would think this means something like "I have dealt with some very poor worms, but I have never caught a fish with them."
I do not know where it comes from. I was way off on my first translation. Pathetic.
I wonder if I am getting senile?
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