One can never say enough about Turn Signals.
These handy devices are meant to be used to indicate I'm going to slow down in a second and then slow down more and then turn in this direction. Unfortunately, these little simple switches have become the sorry I slammed on my brakes without warning, but look, it's because I'm turning now.
Turn Signals are to keep the person behind you from Plowing Into Your Ass. It's in your own best interest to use them as warning devices.
So please humans, put your turn signal on before you start to slow your car.
Next Week. Merging: Taking Turns for Grownups.