"Wait a moment, could you tell Grandpa, did someone ask you to come tonight to ask these questions about Grandma and Grandpa? If it was your father, then go back and tell him if he doesn't trust every word we say, then don't come and ask us for any reasons again. If it was your great-grandfather who chose to have you ask us, please convey the same message that some things cannot be clarified in just a few words, and I hope they won't stubbornly chase after this matter, grasping it repeatedly without ever letting go, as it benefits no one.