Originally Posted by
darthbimmer
Splitting a coffee is a cheapskate move because it's customarily an item that comes with free refills. Indeed, in this case the server did even refill it. If I were the manager I wouldn't have allowed it. Splitting items that don't come with refills is fine, though. E.g., splitting an appetizer or dessert is common.
I think this is the general rule, no splitting items with free refills, otherwise it's fine. The only exception I'd add is that you don't split soup...it's just weird.