I'm sure you think nothing of your habit of honking at the car in front of you as soon as the light turns green--you've probably done it hundreds of times, and it sure is rude of the car in front of you not to take off like a maniac as soon as the light changes; don't they know that where you're going is the most important? Sheesh.
Except for that one time when you honked at the person in front of you like usual, but they didn't go because
I hope you felt the stare of every single person at that intersection upon you after you honked. I hope that feeling sank deep into your soul, to the point that you never honk at someone at a traffic light again.