Kairi, you aren't allowed to sing in public until I've had the chance to give you some lessons.

[This is clearly the important part of all this. You are not embarrassing yourself when you have a perfectly good singer right next to you to give you pointers, girl!

But as for the original question...]

As for Father Christmas, did you know according to my home country's folklore, he had an evil counterpart named Krampus who would put naughty children in his sack and take them away to do unspeakable things to them?

[Ilya. It's totally an actual myth though.]