A variation on The Ghost of Midnight and The Ghost With One Black Eye.
Cast: Border Guard, Supervisor, Several Crossers, 2 Brooms
Guard: Hi, Boss! I'm new here! What do I do?
Supervisor: Well, you have to make sure that people don't try to cross the border without stopping first. You can shoot at them if you have to.
Guard: With what?
Supervisor: Well, we're out of guns, so here's a broom. People won't know the difference if you just go Bang! Bang! Bang!
Guard: OK. (He goes to the side, and someone tries to cross without stopping, so he shoots at him. The crosser falls.) Boss! Boss! It worked!
Supervisor: See? I told you. Now whenever it doesn't work, here's a pretend bayonet. If they don't fall from the fake gun, you can always try stabbing them.
Guard: OK. (He goes to the side, and someone tries to cross without stopping, so he shoots at him. It doesn't work, so he tries stabbing him. The crosser falls.) Boss! Boss! It worked!
Supervisor: See? I told you. Now go to work and don't stop until your shift is finished.
Guard: OK. (He goes to the side, and someone tries to cross without stopping, so he shoots at him. It doesn't work, so he tries stabbing him. It doesn't work either.) Boss! Boss! What do I do? Before boss answers, crosser points a broom at the guard and goes Bang! Bang! Bang! and the guard falls.