Caution! Caution! All over Munich you will find boards leaning against buildings at a 45 degree angle urging people not to walk too close to the side of the buildings. As the sun has been shining at mid-day, much of the snow (and more likely ice) on rooftops are beginning to slide off into the streets - much to the surprise of those passing by. You can see many rooftops have a grate to catch this fleeting snow, but it can only do so much as three weeks of snow has been building up. So watch yourself out there. Sometimes it's not always the snow beneath your feet that slips you up.