AIBU - Family member arriving on Saturday to stay for the whole of Christmas has just advised me they are bringing gifts which need to be refrigerated. It’s not alcohol but they will not explain what the items are for fear of “spoiling the surprise” and will need “possibly two shelves of the fridge”. I have a large fridge but due to catering to a huge amount of people over the Christmas period it’s full and will be at capacity tomorrow. I explained this but they are adamant. AIBU to suggest they store their gifts in a cool box in our shed?