Happened to me once where this couple, teens, in a pos were speeding up to check out the Viper. They run along side for a few, gawking, then they speed up and change lanes in front of me, giggling the whole time. I think odd, but no big deal, just a couple of teens excited about seeing a Viper. That's when their windshield sprayer turns on and I get a few drops on my windshield. I think, "GREAT! I just washed the damn thing". So I slow down and change over 2 lanes. They in turn follow and I see that the girl is really giggling and the little sh*t that she's with is really laughing. THEN their windshield sprayer turns on again! AND their laughing hysterically. YEAH, I WAS PISSED, but short of shooting the two in the head or running them off the road and then stuffing my fist in their mouths, there was really little I could do. Besides, it was just water and they were driving a beat up little pos Festiva which quickly became a little dot in the rear view. (and they were trying their hardest to catch up)
No matter what, there will always be someone out there that will try to ruin your day.