I've never ridden a motorcycle, but have ridden bicycles since I was about 3 or 4 years old. At one point in my life I really got into bicycling as a sport but now a days pretty much ride bike paths every once in a while. About 15-20 years ago I got t-boned by a car that cut me off. I came out of the accident without much injury, but it left me a bit shook up. Then about a year later, I was in my car and following a public bus when it swerved to the right catching a moped under it's rear wheel, running over both the rider and his moped. That really shook me up, not a scene I like to think about nor experience again. Ever since, I've been pretty paranoid when it comes to riding a bike on the road. I'm fine on bike paths, but as soon as I get on the road my head is on a swivel and I'm on edge. I've had some other "minor" run ins with cars while riding my bike, but those two were the biggies.