Take on the security protocol

My building has had the same doorman for decades but at some point
they decided that the doormen needed more responsibility so they added
Fire Marshall and security duties to go along with the arduous task of
asking people to sign their names in some ridiculous book while not
checking whether the guy with the backpack overflowing with wires is
actually named Mickey Mouse. That all changed a decade ago and now
we have fancy magnetic cards that allow us to get through security
with a beep scan although there isn't actually a gate we're walking
through. The beep seems to be as effective as the "close door" button
in the elevator.
Well the beauty of a small building is when the dude needs to take a
leak, the entire security protocol goes out the window. Instead of a
screaming Frenchmen, there is now a small sign which states that the
security officer will return shortly. No problem criminals,
terrorist, sex offenders, drunks and crazy ex-girlfriends, come on
in..the coast is clear.