user
Given a cartoon image and a caption. Caption: Call security and tell them to circle the wagons! Question: Generating an explanation of why this image/caption combination is funny. Answer: 
assistant
An old-time boss from the wild west, after being attacked by arrows, calls security for help, but instead of modern help, he asks them to "circle the wagons", which is a defensive maneuver used to protect livestock during the 1800s when people traveled by wagon train. The contrast between the modern surroundings and the 19th century boss/attackers is funny; it's unclear if security uses normal of-the-time measures, or uses 19th century tactics like circling wagons.