Don't do it! Don't abuse your nice pen in that manner! If there is anything else at hand to use save that pen. Those substantial pens are wonderful works of engineering art! Certainly they will do the job and are solid enough to withstand the abuse but why (short of a true survival situation) would you want to scar up that work of art simply to unstick a stapler? Use the ruler, the scissors, the staple-remover, your Kabar or leatherman but don't abuse that pen if you don't need to!