Oh... [Confused, and not quite sure how to ask about it.] You - you were in a wheelchair? So you must have... um, what are they called? Prosthetics? [Way too curious to be polite this time.] Are they hard to walk with?
I don't think so... no one seems to recognise the name of the ocean that we're under. Maybe this is the only thing on this world? An ocean and a prison?