For me, this always went under "caring for each other" which is something children should learn and practice. Besides, we always had a grand old time. They always made absolutely sure there was food to be warmed up, so that was.taken care of. After that, I'd play computer games upstairs, she'd watch cartoons downstairs and then shout for me when she heard someone coming. Then we'd tell our parents how we practiced piano or some shit and they knew what was up, yet let us go on.