Any size 2 wheeler can have bad endings if not controlled properly. Or should I say, the person in control should always be well alert and remember that there are only 2 wheels and no cage to protect you, and also be sober.
I will never forget the first year that the V-65 Magna and Sabre came out, I was working as the Service Manager and we had sold, I think about 15 that summer. I wrote crash estimates on over half of them. Most of the crashes involved someone other than the owner as the operator. Same old story, owner bragging about the power of his new bike.
Friend not believing him. Maybe a few drinks later, the non-owner convinced the owner to let him take a test ride. He revs it up to dump the clutch and lost it right there, or hung on by his finger tips, and not able to twist the throttle down and eventually crashed.
The CBX 6 cyl was another bike that came on the power curve suddenly and accelerated very fast and a flat seat was hard to stay on if you are not prepared. I personally had that experience while testing a new CBX after the shop prepped it and said, "you can do the test ride". I did not loose it, but I was sure scared.
The moral of the story. Don't let anyone test your new bike, not even your best friend, even if sober.