S3E17: Brian Wallows and Peter's Swallows
Ah, ha! So they do make bigger diapers!
That deceitful woman told me I'd have to learn to use the toilet.
Well, Fie on the toilet! It's made slaves of you all.
I've seen it sitting in there, lazy, slothful porcelain layabout feeding on other people's doo-doos while contributing nothing of its own to society!