possessed or preoperational?

last night i was tucking sadie into bed.  well, actually, into the air mattress/sleeping bag “nest” on the floor of our bedroom she’s been sleeping on since the nightmares hit a few weeks ago.  anyway, i’m lying there with her, all cuddly and sweet, when she says, “mommy, you’re about ready to be a really old woman.”  and then she pounds on my head with a bean bag mermaid and then she bursts into tears, crying “i scared myself!”  good thing i’ve been reading up on my developmental psych.  otherwise, i might think she’s, oh, i don’t know, EVIL?