I like tuna and I can handle white fish (like from a chippy) so long as it's bland and doesn't actually taste like fish. Other than that, I'm not a fan of any seafood at all - especially things like prawns/shellfish. Ugh.
When me and my wife were "new" (and also poor so eating at her parents house a lot) they once made something called "fish pie" and I had to eat it out of politeness, and it's something that just ****ing haunts me now. Sometimes I wake up retching, in a cold sweat, thinking about that fishy mush... prawns were just sort of hiding in there... you never knew when one was going to appear and crunch in your mouth...
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+ Avocado just tastes like leaves and dirt.