So here I am driving through space with empty tanks. The last planet I intended to gas up at was quarantined.
A happy little merchant crosses my path.
I would like to A) If friendly, offer to purchase water from them above local market rate. If they've got water to spare and I need it, I think there's the potential for a lucrative trade here. B) If hostile, from ANY ship from which we could demand tribute, accept tribute in the form of water rather than credits. I can't drink credits.