Little Boy: [Wrassling with small dog] Grr. Heh.
Old Man: Be sure and wash your hands before dinner, pal.
Little Boy: Okay, grandpa. [Runs off to bathroom]

1 minute later
Little Boy: [Returning to living room - dog runs up to him, he pets it then, after 3 seconds it sinks in, he looks at hands, returns to bathroom] Aw…
Old Man: Heh.