I've had a couple, in Roanoke VA, I had an oh sh!t moment, that's my turn, then a curve where the pavement had more asphalt than aggregate. Low side, grass stains on my gear, headlamp out of aim
my next, intersection in Barrington, NH, turning left in the rain, leaned to far for the amount of oil dripped from cars/trucks, I was sitting in road, bike at curb with broken shifter