My tuck has lots of "personality".
First off, my locks are pretty messed up. I had 3 friends in highschool whos keys would open my doors.
Not a big deal... but they all knew that my ignition switch was messed up. You don't even need a key, just turn the little "tabs" where the key goes in.
Needless to say, my truck had a habit of switching parking lots.
The odd thing was is my keys never worked on their cars...
... I could go on and on...