"Must be it," Seth agrees with amusement, taking both their Irish coffee glasses and getting to his feet, heading over to refill them. "I mean, it makes you a very cheap -- aahh. Cheap. To get drunk, I mean."

Then he turns back and fetches his water glass too, realising he hasn't drunk any of that yet, and works on doing so while he mixes them new drinks. There may accidentally be a bit more Irish in them this time than the first ones.