I fall more often to the left. Failure to unclip, tires slipping (road camber in the US) and I am more clumsy to my right so I do my best to avoid right hand falls and so take right turns more carefully. Edit: also falls to the right are often to a lower level and therefore more dangerous (road camber again, ditches, etc. Some of my clumsier spills have been to my right and might well have been a bigger deal for a camera.