You say you'd rather fix the shelves in the display cases.  You walk to the cases and begin carefully removing the artifacts from the shelves as Buffy takes the broom and begins to sweep the shop floor.  Before anyone realizes what has happened, a vampire bursts through one of the shop windows and lands right in front of Buffy.  Before the vampire has a chance to throw even one punch, Buffy snaps the broomstick across her knee and plunges one of the broken halves into the vampire's heart, causing it to explode into dust.