Ds decided he was going to "believe" in Santa like his friends. So he went about discussing how to catch Santa in the act, and talked about what he would ask Santa for Christmas, and so on.
This went on for maybe a week of contemplating all the what if's.
In the end he concluded that he was glad Santa wasn't real because he didn't like the idea of a stranger entering our home while we slept and that now he's dealing with bad dreams all because he wanted to try to be "normal."