Depends on the area but things like this do happen. I have a rear view mirror on the bike and I am respectfull of motorists. They are bigger than me and can hurt so I keep an eye open for them. BUT- I also let them know what I am doing. Turning against the traffic and I signal- And definitely signal. Only move into my position when safe and when the car gives me room I thank them.

But one ride a few years ago we had 3 hits on cars. One pulled out on us and we damaged the bumper quite severely. One caught the end of my bars with his mirror and his door mirror went flying. And a car pulled right in front of us on a roundabout and he had a nice expensive crease down his trunk. None of these drivers saw us apparantly. Two riders on a Tandem in bright yellow and with strong lights front and rear. Damage to the Tandem--Zilch except I had to align the bars. You don't mess with an offroad Tandem- The cars can come off worse.