Love the early air horn.
That piercing sound shocks the crap out of the idiots that decide it's OK to cut off my classic car.
Exactly the same sound as the horns on the "choke and puke" catering trucks that visit most construction sites around here. So...you guessed it, as I drive by construction sites, I slow down, tap the horn twice (beep, beep) and watch them drop their tools looking for the junk truck.
Nasty but priceless!
Guys like me, get their kicks in weird ways.
That's why I luv my Fiat!