The warden of the Tegernseer Hütte apparently has strong feelings about cell phones! "Please disable/destroy your cell phone here."

(Although it's not a mountain picture, I submit it because it is part of the mountain experience in Europe, where huts abound and everyone has to be a little polite to keep a feeling of wilderness. It is a commentary on contemporary mores, and/or a humorous reflection on the trials and travails of being a hut warden in the mountains.) :-D.