Lu Jiajie left early in the morning for a distant trip, and because he was in a hurry, he forgot to wear his watch. When he returned a week later, the watch was nowhere to be found.
Ma Lili, upon hearing that his watch had gone missing, also helped in the search, but despite turning the drawers and wardrobe inside out, it was not found.
When they couldn't find the watch in the house, they went to the children's room to look for it, but to no avail. Ma Lili asked, "Did you possibly lose it outside? How could it disappear if it was in the house?"
Lu Jiajie replied, "I wanted to check the time on the bus when I realized I wasn't wearing my watch, so how could I have lost it outside? Qiangqiang, Xiao Feng, have you seen Daddy's watch?"
Both Qiangqiang and Xiao Feng said they had not seen the watch.
Lu Jiajie clearly remembered that if he had not worn the watch when he left, then it could only be in the house; after all, a watch isn't a living being that can grow legs and fly away.