Over the summer I made a right hand turn in front of someone and they were going a little faster than I realized - so they had to slow down. Then I apparently drove too slowly - and I could see they were getting agitated... he ended up speeding past me, then flipped me the bird. He was driving a beat up Chevy pickup with a rebel flag in the rear window. This happened near my home - for a month or 2 afterward people kept inexplicably slowing down in front of me - one time they even stopped in the middle of the road. I couldn't ever prove it - but from the behavior of some of the drivers - it sure seemed like someone told his buddies to get even with me. That was pretty stressful. I think they eventually gave up - because I haven't had any similar incidents in several months.