My mum used to keep the roast dripping too. When she made "Stovies" (Sausage meat, onion and potatoes with lots of black pepper. Simmered untill the spud broke down into a lumpy paste) she would add the dripping. Gave it a great flavour.
Never been too fond of the ofal, although I don't mind a steak and kidney pie. But the tongue, brains and tripe are complete turn off.
Bill