The lock on my focus was sticking a bit even though I lubed it
with graphite. So I removed the parts that lock the cylinder. It
was easy. Now any focus key or even a screwdriver can be used to
turn the lock. This means that I am relying on the electronic
chip in the key to keep the car from being started. Those with a
manual transmission might want to find out if the car can still
be push started without this chip.

How I did it: separate the two steering column covers just behind
the steering wheel. The upper one is attached to the lower with
some tabs that can be pushed in. The lower one is attached front
and rear by several screws. Remove the screws on the steering
wheel side with a star driver. You can buy a whole set packaged
like a pocket knife for a few bucks at wallymart. Separate the
covers a inch or so and locate a hole on the driver’s side of the
housing that holds the lock cylinder. I used a long thin allen
wrench to poke a button through the hole while the key was in the
accessories position. The lock cylinder then falls out.

Pry off the clip on the back of the lock cylinder. It then falls
out of the second housing. Then you see a lock bar that pops up
when you stick the key in the cylinder. On either end of this
bar, pry off two staples that hold it in and remove the bastard.
Opposite this space, on the other side of the cylinder is a thin
metal plate. Pry it off with a pocket knife and all sorts of
metal parts fall out.

Put the cylinder back into the second housing, use pliers to
squeeze the clip back on to the post and snap it back into the
housing attached to the steering column. Now your key will insert
without any resistance and there’s nothing to jam the lock. Have
a shot of moonshine.