Season 5, Episode 7: "The Nonfat Yogurt"

Wait a second. Maybe it's that yogurt.

No, no, no. That's 100-percent nonfat.

How else could this have happened?

Well, maybe it's the Oreos.

I don't eat Oreos.

You don't eat Oreos?

The way you break 'em open.

You're ahhhhh-uhhh-agh.