I surely have. Once I had someone snap at me because I didn't use my blinker. Fact is, I did use my blinker, but the bulb was out. I'm glad he let me know in such a nice way
As he approached me unarmed, he changed his tune when he found out I WAS armed. I feel bad because he probably went home and beat who presumably was his girlfriend or wife in the car with him. But hey, he was twice my size and I had to defend myself.
This is a good lesson as if I had been a nut, I could have really hurt or killed the guy. He's lucky I didn't have him arrested. And for what, he went off because of a burned blinker bulb. No way he could have known and it surely wasn't the blinker that set him off that day. Keep a cool head when dealing with people on the road.