Lily was "angry" at school earlier in the day because a group of Sevens from another Community came to join her Childcare group at the play area, and "they didn't obey the rules at all". She was especially mad at one little boy who "kept going right to the front of the line for the slide, even though the rest of (the children) were all waiting". Lily was so infuriated that she made a fist at the boy to express her displeasure.
Mother and Father talk to Lily about her feelings of anger, asking her to consider the possiblity that, in the visiting children's own Community, rules might be different; perhaps the children "simply didn't know what (Lily's group's) play area rules were". Jonas encourages his sister to remember how she had felt when her group had visited other communities, and Lily admits she "felt strange...because their methods were different...(she) felt stupid". Father says that might be precisely how the boy who angered her today might have felt; "strange and stupid, being in a new place with rules that he didn't know about". Lily concludes that perhaps she is not angry after all. In fact, she feels a little sorry for the boy, and is sorry that she made a fist at him (Chapter 1).
Later, when Jonas has a greater understanding about feelings because of his experiences with the Giver, he remembers this incident. He realizes that Lily had not felt real anger - "shallow impatience and exasperation, that was all Lily had felt". Jonas knows this "with certainty" because, now that he understands what real injustice and cruelty are, he himself has experienced anger and rage, and they are nothing like the "anger" that Lily thinks she felt on the playground. (Chapter 17).