During family dinners in the past, Uncle used to make fun of Dong Tianyu, saying that he couldn't even catch a fish in the Fish Pond.
But ever since Dong Tianyu found out about this, whenever Uncle repeated the embarrassing story to others, Dong Tianyu would retort that his uncle was being stingy, tampering with his fishing hook just to save money, leading to his inability to catch any fish in the pond.
At first, when Uncle heard Dong Tianyu's rebuttal, he would insist that the inability to catch fish was due to Dong Tianyu's young age and lack of understanding.
But when Dong Tianyu pointed out that both his and his cousin's fishing gear were tampered with by Uncle, and yet his cousin kept catching fish whilst he didn't hook any, it seemed too abnormal given that the Fish Pond didn't charge for fishing time, but by the weight of the fish caught.
After refuting him several times, Uncle stopped using this incident as a joke at dinner parties.