M (bounding down the stairs): "Mom!! J was just really nice to me!!!" Mom: "Oh, yeah?" M: "Yeah! He let me use his toothbrush since I couldn't find mine! Wasn't that nice?!?" Mom: (trying not to laugh) J (acting all big brother-ish): "Yeah, I did. But just cause we couldn't fine his."
(They both notice me trying not to laugh, decide I'm the crazy one, and walk away)
M (walking away, talking to J): "Well, it was nice of you, you know." J: "Yeah, I know."