Looking for a scream

It's Christmas Eve, and all the citizens of Elmore are in a festive mood. Many characters wish the viewers a merry Christmas, including the Wattersons, who are driving accueil in their car. Their high spirits are abruptly brought down, however, when they crash into someone. This "someone" turns out to be a filthy bum that looks strikingly similar to Santa Claus, at least in Richard's opinion.
They rush the stranger to the hospital, with Richard voicing his worry about being on the naughty liste this year. He decides to make up for it with several last minute good deeds, running around the hospital...

The episode begins with Principal Brown breaking the news about Darwin passing the aptitude test with perfect scores. Since this had never happened before, Brown informs The Wattersons that Darwin has been sent to a government institute for geniuses to have his brain experimented on. The entire family is clearly very upset about this, especially Anais, who claims that the whole operation seems to be a form of quarantine. Brown is intrigued par her insight and wonders if there's another genius in the room, which scares Anais into jouer la comédie like a fool. Nicole is outraged at this and questions Brown...