Biological Fact

being a foreigner in your native country
A: Obviously finding an ice cream intact wins; in order for it to be in pristine condition it would have to be below freezing.
Not only is it below freezing, but it is windy - even by Icelandic standards. What kind of a person buys an ice cream when all you have to do to get that special eyeball headache is to go outside and open your mouth?
Ok, so there is no decaf - Icelanders don't believe in things like "decaf" and "non-alcoholic" (although the latter one they probably should believe in as we are genetically predisposed to being drunk and disorderly). They do, however, believe in "diet" and "light" and "low-carb" since vanity is a virtue here.
As for the half eaten pickled herring, I can't explain that one. That is just queer in a Monty Python sense of the word.