Ugh - I've had some terrible experiences with people. I can't stand driving with idiots.
Though, as far as the topic goes - I haven't had any 'red light conversations' but I was witness to a redlight fistfight.
Back about 4 or 5 years ago my husband and I were friends with a guy we probably shouldn't have been friends with. His attitude was questionable, and his actions were worse. He was ALWAYS in some kind of fight. Well, him and my hubby were in a car club, because they had nice cars, and nice systems and custom work etc... There are rival clubs, too. Well we have a street, that is 4 lanes across each way, with a median in the middle. (I'm talking definite median, grass with cement curbs and everything) People cruise on it on Friday and Saturday nights - showing off their cool cars. So I was out cruising around with a friend, following behind my hubby and this kid, Mike. A rival car club was trying to run my hubby off the road in Mike's car - so at a red light, Mike gets out of the car, and do 4 of this rival dudes friends, and they all out BRAWLED in the median during a red light. The light turns green, they all scramble back to their cars. Hubby vrooms off, and I'm taking off after him and the guy cuts me off! I almost went up the curb! So now this dude is in between my hubby and I - and we're all speeding off this street and into some side streets. And I have 7 cars behind me, following their rival buddy dude in this chase! Hubby, and the rival are blowing through stop signs, because my hubby is trying to get away somewhere fast enough to 'hide' or whatever... (bad experience with guns one time, freaky shit those car club people!) so here's me ... following behind... STOPPING at every stop sign, because that meant the 7 cars behind ME had to stop, too, lol. And I didn't use turn signals, so that the cars behind me couldn't see which way hubby and the rival were going and speed around me. It ended up behind a really scary night - we almost had to take Mike to the ER because of that stupid fight, they made his head bleed. Needless to say after that, hubby took the car club sticker off this truck and tried to stay as inconspicuous as he could, lol. It was frightening!
People are stupid-crazy these days!