Dickens’ humor is just as wry in the written word as it is on the screen. If you’ve never read / listened to the book, do it immediately! If you already have, it’s time for a revisit.
“You may be an undigested bit of beef, a blot of mustard, a crumb of cheese, a fragment of underdone potato. There’s more of gravy than of grave about you, whatever you are!”