i don't think anyone said it can't happen. it's just not very likely as long as you know the limits of the machine you are operating and drive it with common sense. i've seen alot of guys mow and they always look like they are in a hurry and driving reckless and so forth. it's the same way when people drive cars that way. they are the ones most likely to have a wreck of some type. if you drive defensively and aren't trying to mow hills that you know are too steep and such then you shouldn't have to worry about it. common sense goes a long way. it's just most people these days no longer have much of it.