Web Check-in

The following conversation took place last Friday night between me and my significant other:

Mister (seeing me using computer): Are you doing a web check-in?
Me: What? What do you mean?
Mister: A web check-in. Are you checking in on the web?
Me: Why on earth would I be doing that? What the…(pause)…oh you mean for the FLIGHT.
Mister: Huh? Yeah, what did you think – (realises and laughs) You thought I was asking if you were checking in FILES?

Note to self: Must un-geek my brain on Friday afternoons.