Reply to what e-mail?

Me: Did you see my e-mail today?
Christen: What e-mail?
Me: The reply I sent to the e-mail you sent last night, when I was home.
Christen: But you were asleep on the couch. And you always ask me to write stuff like that down, anyway.
Me: True. [Amused] Can I quote this conversation?
Christen: Yes.