Check out this wild video of a train crash yesterday. It’s a great example of the fact that just because you have a policy (i.e. the no truck crossing sign) doesn’t mean that people will abide by (i.e. the dummy driver who probably thought “Aw, I can make this.”). Some people just believe that they are exempt from certain things.
Keep this in mind for your information security matters…you can’t save people from themselves all the time (like in this case) but you’ve got to set people up for success whenever you can.