Exactly and when that happens even the slightest veering could be enough to down a motorcycle. When on the road and aware of a bike nearby I can't wait until they're gone. I've had several friends who rode and an oil slick, wet leaves took them down. I even had a cousin and his wife who were tapped by a car go down and he actually "died" but was brought back. Months in the hospital for both. He rode again which was surprising to me but his wife wanted no part of it. They were no daredevils but used a big, heavy Harley as a convenient and enjoyable means of transportation during Summer outings.