2 Works in Yuletide 2009
Every so often, some teacher or another asks why Phineas's brother doesn't talk.
We start out with a normally imaginative day for Phineas and Ferb, until Candace is replaced by a man. This isn't just any man, however; this man makes Perry the Platypus sweat milk.
Nothing too in-depth or reaching outside the bounds of a regular episode.