What the?

Kids say strange crap. Case in point:

Isis was in bed about asleep. I was laying next to her. She sleepily rolls over and says, "Mommy?"

"Yeah, babe."

"I think we're stuck in here."

?

Earlier, she said, "The wall is BAD."

I said, "walls aren't bad or good. They're just walls."

"Oh. Ok."

?

Where does this stuff come from?