LOL! I've seen variations on that before, but the Norwegians now take the cake.
On a side note, years ago I worked with a lady from Alaska. Honest to goodness, in the month of December in a snow storm in Michigan, she was outside waiting for her husband to pick her up... wearing a sweater. No coat, no gloves, no hat, just a thin sweater. She was waiting for it to get cold, I guess... 'twas plenty cold for me. Fifteen degrees fahrenheit, which makes... about -10 Celcius... and she was comfortable.
'Course, then I married a woman from Oklahoma in the south, and promptly introduced her to what we call cold weather up here...