My buddy and I were talking, and he pointed out something to me that I never really noticed: people don't finish their meals or drinks. Now that I think about it, 95% of the time where characters are talking in at home or in a restaurant that as soon as the expository dialogue is completed, they will get up and leave without finishing their meal. And in some situations, a character leaves another character just sitting. What, is it expected that they pay the bill?