Imagine if the main villan was also like, your uncle, or father, or something, but they also celebrated all of the holidays like a normal person. Like, you look under the christmas tree. and see a present from Gregnar, The Lord of Darkness. Or you have to sit awkwardly next to your mortal enemy during thanksgiving dinner. "Can you pass the salt?" asked Gregnar, The Apostle of Evil, wielding his unseasoned turkey leg.