Adam had a major role in the Christmas episode, "Have Yourself a Joyful Little Animas", where he was apparently the only one who didn't get the memo that today was the first day of the national five-day-long holiday event, Animas. Apparently, Animas is a surprise holiday that happens on a random day, once every year and all animals have the collective instinct to know when it begins and what to do on it. Adam, on the other hand, being a human, does not come equipped with these natural instincts and has completely missed the boat on the first Animas day celebration. Throughout the episode, Adam desperately tries many things to get on board with the Animas party, but consistently fails enough to drive him to giving up his Animas spirit. This strikes like a knife through the hearts of all the joyful animals of CDMS, believing Adam has ruined Animas for them. Adam goes on a soul search, through the city limits of Glendale and a visit to Samurai Quan's restaurant helps him to realize he's had the Animas instincts all along. He just needed to clear his head. Joyfully, Adam returns to CDMS and spreads his newfound Animas cheer, restoring happiness to CDMS and saving Animas for everyone. On the fifth and final day of Animas, everyone sits around the table for a feast and makes a speech about what they've learned over the past five days of Animas. Adam mentions his discovery of the true spirit of Animas, which is learning to trust his instincts, be they animal or human. He then tops it all of with saying the most important lesson he learned was that next year, he should just stay home.