user
Given a cartoon image and a caption. Caption: Decaf. They can't be far away. Question: Generating an explanation of why this image/caption combination is funny. Answer: 
assistant
A joke about the impact of caffeine. The two wild-west police officers have encountered the previous night's hide-out of the criminals, but because the criminals drank decaffeinated coffee instead of caffeinated, they likely have less energy to be on the run because caffeine energizes people. So: because they drank decaf, they aren't as far as if they had caffeniated.