Attacking Christian Science because it lets little kids die of cancer is the weakest attack ever. South Park went after Scientology, for eff's sake.
I finally realized that I was thinking of Henry, who was the abusive kid who "adopted" Roger in an episode of "American Dad." In that episode, Roger began to feel unloved because he believed that Steve had grown out of him. Drunk and distraught, Roger stumbles into Scotty's back yard, and Scotty takes him in. Scotty was eight, maybe ten years old. But I swear they used the same voice actor for the Scotty in this week's Family Guy, even though the kid was only, I don't know, maybe five or six.