Our apartment door comes with a unique feature: to lock it from the inside there is no knob; you must use the key. If you leave the key in the lock, you are unable to lock or unlock the door from the outside - yes, two keys makes for potential trouble.
Today, as we left for our language lesson, we did the unthinkable and left a key in the lock. After brute force failed us, we sought out resources from Sheldon and Anna. When our attempts with screw drivers and bobby pins proved equally ineffective, we turned to our building manager for help.
Using nothing more than a tiny screwdriver and a long piece of thin metal, he had our door open in 2 minutes or less. VICTORY! Though we were greatly relieved, we now question the security of our door. We figure that since we live on the top floor and there is no elevator, if any thief gets away with our stuff then they have earned it!