Even Hákarl? I'm a pretty adventurous eater and the worst you'll usually get out of me is, "Meh, not that great". But Hákarl made me want to throw up, literally. The hardest part of trying to eat it was that it was tripping my gag reflex before I even got it in my mouth. The smell of rotting fish is bad enough. But overlaid with a strong ammonia smell, it just pushes it over the top.