The questions show each character's disrespect for other's position.
Explanation:
In this conversation, Kevin reveals that he wants to sign his dog Cromwell up for agility lessons. However, his father believes this to be pointless, and argues that such a practice is not even a sport. On the other hand, Kevin disagrees with his father's position, as well as his definition of sport. The sarcastic questions that the characters present to each other demonstrate that neither one of them respects the other's position.
