Well, exactly. If I want to travel a distance that could be usefully traversed in a cab, then it's both kidneys and half a pound of bone-marrow. Also, I only e

Well, exactly. If I want to travel a distance that could be usefully traversed in a cab, then it's both kidneys and half a pound of bone-marrow. Also, I only ever get taxis when I'm in a state of refreshment sufficiently advanced that walking becomes unwise.