Was watching MNF (a rarity for me) and had a question. If a fumble leads to an advantage, do they always allow it? Patriots just got a TD on a fumble - otherwise they probably would have been at the 10 yrd line. If there's no penalty, wouldn't there be cases where it would be worth it to intentionally fumble? Especially on fourth down, or the last play of the game? What's to stop you from just chucking it forward to a teammate and pretending you fumbled?