user
Given a cartoon image and a caption. Caption: No, just hear him out. Maybe we are being too defensive. Question: Generating an explanation of why this image/caption combination is funny. Answer: 
assistant
A play on the word "defensive" --- in the football context, playing "too defensive" might mean a team might not be trying to take control and push offensively on the field. But, for a therapist, being "too defensive" refers to a psychological frame of denial, which can stop people from mentally moving past their problems. It's funny partly because strong, manly football players are the sort of people one might expect to be too emotionally defensive.