I tried to think of something other than a straight shot for this theme. I noticed the Staples logo on my ruler and thought I'd try shooting a stapler through the ruler. It doesn't work very well.
Great concept, just your well-used ruler (as Val pointed out) that stood between you and the stapler.
I like the idea. Maybe a new ruler, one not so loved, would have let more stapler show through? Very creative!
Great picture for the theme! I like this. Have a great day!