I know this sounds impossible but it happened to me 2 days ago. I got on my wing and started it up. I always leave it in neutral in my garage or any other time I shut it off. I raised the kick stand and was about to manually push it back out of my garage when it took off. It accelerated briskly and slammed into the back of my garage damaging the front end. I just had time to grab the hand brake which did no good. After the impact, the green neutral light was still on so I pushed it back a few feet and shut it off. My foot never touched the gear shift. I never gave it any throttle. I am no amateur. I have ridden for over 41 years. Has anyone ever heard of this happening? I'm not sure what to do next.