We were remodeling our house for a couple of month and had a temporary door on, somehow the lock was put on backwards so you had to turn it clockwise to open the lock and counterclockwise to lock it.
Once the remodeling was done they put up a new door with a lock on the right way, just when i got used to doing it backwards

Now i canīt seem to get used to doing it the "right" way.
Almost every time I get home from school there is someone usually cooking or doing something in the living room so they leave the front door closed but unlocked. When i walk up to my house I always end up locking the door, turning the doorknob and smiling at myself for locking the door and THEN trying to open it