Little Sister: *making a bologna sandwich*

Brother: *sees the plastic ring from the bologna in her hand* What is that?

Little Sister: It's the plastic ring from the bologna.

Brother: Why'd you take it off?

Little Sister: *stops, stares at him*

Little Sister: . . . It's plastic; you're not supposed to eat it.

Brother: No it's not, give me that. *tests it between his teeth, realizes she's right* Oh. . . That explains a lot.

Little Sister: HAVE YOU BEEN EATING THE PLASTIC?