Sorry for your experience. I had a similar event with my 2012 full Wing. Parked on my drive at a slight downward slope with engine running, kickstand down. Luckily, I was not near the motorcycle when it slowly inched forward and fell on its left side. I had gone back into my garage to retrieve something. I have never parked the F6B or my previous Wing in that slight slope situation again. Heal well and fast.