I will mandate that car horns be modified to the highest standards of emotional intelligence. There will be a friendly little toot for “Hey, the red light’s changed!” or “I’m here- don’t back your car into me!”.
There’ll be a happy little wave for “Hello! Haven’t seen you for ages!” and a cheery call of “Hey, I’m here in the driveway waiting for you!” when you pick someone up from their house.
There’ll be a slightly more impatient “Come ON, I can’t wait all day!” and a derisive “Get off your mobile phone, you wanker!”.
And of course, there’ll still be the loud, strident “IDIOT!!!!!!”