A few more sage pundits can be heard roaring above the sound of the steam wand:
A literalist will want to know whether a dualist
considers the price and the tip to be two sides of the same coin.
An economist will assure us there is more than one coin involved. The barrister will agree, and
will devise a way to make the numismatist open that attache case and pay the barista. The ontologist will suggest our joke has mutated and is philosophizing out of control.
It's a jungle.