It's nice to communicate with family.
Joe sees that he has an incoming call from his mother.
Joe wants to work on his car.
Joe answers the phone and talks to his mother using a headset while working on his car.
Joe doesn't answer his mother's call and starts working on his car.
Joe's mother is happy that her son takes some time to talk to her.
Joe's mother feels abandoned by her son when he doesn't answer to her call.