After eating, Adam consciously went to wash the dishes. Emily was cleaning the house when she heard a ringing in the room.

"Emily, see who's calling."

"Oh." Emily put down the mop and ran into the house to get the phone.

The caller ID: the old man.

"No display?" Adam's voice came again, and it could be heard that he had come out of the kitchen.

"Yes! It's a man named Old Man."

Emily handed the phone to Adam, who scanned the caller ID and glanced at Emily, who was a bit puzzled. The corner of Adam's mouth raised slightly and he said, "Answer it for me." Adam gestured the...