As far as I know (someone please correct me if I'm wrong) in natural settings rics don't generally have large meaty food fall on their "lap" like that, and if that did happen it would likely be stolen just like in our tanks. Instead, rics eat small bits of organic waste and plankton that land on them or that they catch with mucus nets. Rics mostly survive through their symbiotic arrangement with the photosynthetic zooanthellae in their tentacles and oral disc.
Merry Xmas eve to everyone that celebrates it and happy holidays to everyone else!