I stopped at a residential intersection that had 4 stop signs. The Camry coming from the left seemed to be going too steady a speed to stop, even if it was about 25MPH.
Put my thumb on the horn and when the front bumper crossed the limit line I laid on the button. Held it til the rear bumper cleared the other side of the intersection.
She never jumped, nor turned her head, or even blink.
I won't mention the predominent ethnic group.