The moon again

Chris: Burned.
Me: Huh?
C: Burned. It's awfully close. [points up]
M: What's burned? Up on the ceiling?
C: Yeah.
M: What's burning?
C: The moon.
M: The moon!? [laughs] Why is the moon on fire?
C: Cause of how close it is.
M: The earth set it on fire or the sun set it on fire?
C: Uh.... [zones off]
M: Hey! What set it on fire?
C: Hm?
M: What set the moon on fire?
C: What mood?
M: [laughs] The moon.
C: Uh.... (I think he's forgetten what we're talking about now)
M: Did we do it?
C: I don't know.
M: Oh, ok.