I was riding along on my road bike doing like 17mph - single lane road. Two cars pass me, the second being a sheriff. I could tell he was on his radio, and talking to his partner/passenger. The sheriff turns right just after he passes me!! If I hadn't noticed his right-hand turn signal, I would have been over his car. I had to SLAM on my brakes. I've had cars do this to me before (in fact twice just in the last two weeks), but a police officer??