I keep mine with me at all times too. But I never act a fool behind the wheel (anymore). I never did the finger shyt and yelling (that's cacish) but when I was a minor I did blow the horn excessively and follow people while blowing the horn, I got out one time and approached some cacs car (he was scared, I told this story before), if I swerve or veer, take too long to accelerate after a light and someone honks at me or whatever I let it go, I fukked up. They aren't coming at me for no reason.
I've never encountered one of those a$$holes (like I used to be) that takes it too far. Most people just give you a honk and keep it moving, some will throw up their hands, some give the finger. Those a$$holes that left late and you fukked up their commute will follow and accost you, I haven't encountered them since I've been armed.