Good Cod, I don't believe it

This is not one to read before your lunch. In 1984 I was tucking into a school dinner of battered fish and chips, when I discovered to my horror that the fish contained a coiled up worm or other such parasite. As you might imagine, no more fish for me. About 6 or 7 years later I finally plucked up the courage to try some fish again, the first since the incident. And you’ve guessed it, again I find this particular fish has the same affliction. Somehow I found the whole coincidence so unlikely, that I laughed it off and did return to eating fish fairly regularly. In the 25 or so years since, I have never found another worm in a fish. I recall at the time being told that such fish infections were fairly common. Perhaps food inspection rules or the general health of cod has improved since the 80’s. I’m grading this as once in a lifetime, not because I think it is so unlikely to repeat, but because I sure hope it is.