Checking the Corner

I walked over to the edge of the room to check the perimeter. A heavy metal storage box was sitting against the wall. I pressed my hands against the cold surface to make sure it was sturdy. It did not budge. Next to it was an empty wooden ruler lying on the floor. I picked it up and propped it upright against the crate. It could serve as a barrier or a tool if needed. The perimeter looks secure for today.