Almost hate to answer this as I don't want to encourage bad luck but I have never had one just fall over. Dropped two...one years ago, a small Honda I dropped after hitting a large root riding a forest road, and the other was a Virago 1100 that I dropped in a gravel parking lot while on a group ride. Only thing either drop injured was my pride. Had a Vulcan 1500 that almost fell over in my driveway on a really hot day and the asphalt started to melt, but I got to that on before in fell.