Any time I find someone takes my back, the number on thing I’m looking for (assuming they have already scored on me by getting their hooks in), is to break the connection between their chest and my back. Once I break this connection, I have broken their angle to choke me and I am safe from their chokes. Given that the rear naked choke is consistently the number one submission across IBJJF, ADCC, and UFC competitions, this is priority number one.