2 Part Technique - When your opponent manages to find his way onto a Single, before you have a chance to slip your leg free, assume a belt grip and position similar to Sumi-Gaeshi in Judo, and pick his near knee off the ground for a hop-out or reversal. Whatever you decide to do though, don't opt for what Brazilians call 'enterrada' (buried), wherein you stun your opponent's head off the mat DDT-style. Although highly effective in terms of perhaps self-defense or MMA, we shouldn't bother training moves that seriously risk injuring our partners in the sport of BJJ. Land yourself inside Reverse Half Guard and perform the finishing steps to the Back Step Pass, establishing in N/S.