Take a moment and think about this. The last time you were in a car and you looked at yourself in the mirror. You open the slider, then shut it all the way. This woman says, if you’re suspicious of someone else, just leave it halfway open so that another person will be forced to shut it all the way when they’re done using it. Now, there are holes in this argument. What if his mom or friend was riding in the car? All facts. But you have a woman’s intuition.