Perfect security isn't one that keeps you from getting where you want to go by reminding you of its presence with every step you take.
Perfect security is so stealthy that you don't even know it is there until you try to do something that compromises it.
Security that gets into your way is something you WILL get rid of, and without a guilty conscience. You're doing it to improve your productivity. An example:
If you work in a warehouse where stuff gets stolen and security demands that the doors are closed and locked at all times, and your job is to carry boxes out to the delivery truck, your work cycle is like this: Pick up a crate, carry it to the door, unlock the door, open the door, carry the box through the door, close the door, lock the door, carry the box to the delivery truck, return to the door, unlock the door, open the door, step through the door, close the door, lock the door, start over.
How many times do you think the average worker will do that before there's a wedge under the door to keep it open?