Foiling Santa's Spying

A few days ago Isaac was asking Bianca some interesting questions about Santa.  Here is how the conversation went:

Isaac: Can Santa see me in here?

Bianca: Where?

Isaac: In my room?

Bianca: Yes.

Isaac: But how, there is a roof [Points to ceiling]

Bianca: He lives in the North Pole, so a roof isn't really the big problem.  Plus, Isaac, you have been such a good boy, why are you worried?

Isaac: Well, sometimes I am not a good boy and I don't want him to see that.

Bianca:  You're not ever a bad boy and Santa knows that. 

He is always thinking, that kid.  Bianca said he inherited the schemer gene from me and I think this is proof of that.