This is unfortunately one of those images I don't have a source for. When I write scenes with anal, it's not uncommon for this to be one of the inspiring images. It isn't the only one, certainly, but it's up there.
And happy winter-time holiday period of the year that I know Christmas isn't a good term for anymore! I hope yours was a good one. Mine was. Family, presents, babies behaving as decently as babies can.