My father ‘shows his appreciation’ for whatever food he’s eating. That, of course, is lovely, but he does so by beating the shit out of the container to ‘get hold of every last bit’. He is, however, a scraper across his food spectrum. Pans - scraped, plates - scraped (including the ingestion of some porcelain, by the look of things) and any item that has had food on or in it - licked, if he thinks nobody is watching.
It’s alright until it gets to the point of being loud enough to interrupt conversation and rupture eardrums.
Disclaimer - I don’t hate my father. Nobody hates him, that’s physically, mentally and probably logistically impossible. Nicest man on the planet. Bastard.