El Gato y La Rata

During a walk through Barceloneta, we encountered an odd picture.  A cat, sleeping on a ledge, while a rat scavenges down below.  In Darwinian terms, both of these animals are not fit for survival.

The rat is in the bottom left...I've cropped the photo (below) so you can see the rat better.

Obviously someone cares for this cat and leaves fresh water and food on the ledge so he doesn't have to attack the rat for survival.