Someone with physical access to your car could cut the brake line.

Also, two or more people should have immediate physical access to the room.

Somebody has to have physical access to use this one.

If somebody has physical access to your machine, you're in bad shape.

I mean, if somebody doesn't have physical access to your system, what are you worried about?

We'll have one more chance at physical access to him.

This required physical access to the lines over which calls were carried.

If somebody has physical access to your machine, there's a whole host of other problems you've got.

If anyone had physical access to someone's web server, they could get the key.

So the fact that people have physical access to the client means they could get the key, no matter what you do.