Because he was born on December 24th, and his parents named him Santa.
Rough break.
She collapses with laughter.
But no, she says, okay, it was kind of funny, but she wants to make him happy.
He says to leave him alone, he's perfectly happy the way he is.
This is a lie.
Now Iook like an idiot, because I haven't mentioned Mai Mai, Mai's younger sister who has been a comic relief nuisance underfoot this whole episode.
And the post credits scene reveals that it was all a mistake. Shirley had been sent to bring Mai Mai home, not Mai.
Lol?