However, I have long felt there should be 2 car Horns on every car.

One the plays a happy little ditty to let people know you're happy and just making them aware (e.g., "the lights green, but I'm just letting you know, not enraged about it.")

And one regular horn that can be used to let people know that you're aware they're being inconsiderate jerks (but please don't shoot me, I don't care that much )