I actually worry about people stepping out in front of me in parking lots when I'm in silent stealth mode. I installed a model T "OoooGaaaahh" style horn with a push button switch, so it's in addition to the stock one, not replacing it. It really draws more attention than a louder "dual" modern one. The "duel" ones are musically out of tune, on purpose, to draw attention, but are so commonplace, they dont.
Of course, there's always the General Lee horn.....
-John