One of the best examples of what can happen was here in Kiwiland few months ago. A Glacier Southern Lakes EC120 was on a tourist flight around the Queenstown area and landed so that the pilot could get out and take a leak. He did make the passengers get out as well.
BUT - As he had the old fella out and giving it a shake he turned around and saw his EC120 sliding down the mountain and then tipping over. Needless to say he had a bit of explaining to do.
