S11E2: Brother's Little Helper
Your son is a ravenous demon, relentlessly gnawing at all that's good and true.
Yeah, he's something else, all right.
But worst of all, he drags down the grades of anyone who sits near him.
just look at this pattern.
Hey, that looks like Bart.
And turning to the 3-D map, we see an unmistakable cone of ignorance.