user
Given a cartoon image and a caption. Caption: You better hope that was rain I just felt. Question: Generating an explanation of why this image/caption combination is funny. Answer: 
assistant
The cop is trying to get the person to stop illegally flying a dog instead of a kite --- the joke is that, unlike kites, dogs can urinate, which might cause the police offer to get urinated on from above. The cop is trying to get the person to stop flying the dog, and it's likely the punishment would be worse for the man if the officer was peed on. The officer points out that the liquid he felt, for the sake of the man's punishment severity, is hopefully rain and not dog pee.