honestly, my favorite is to wait for them to tie up with me, or tie up myself, take a collar tie and then throw my other arm underneith their chin and grab my wrist. then hold on tight and spawl, they drop like a bag of bricks. it's dirty and painful, but nobody sees it coming and allows a 1/4 nelson, d'arce choke, arm triangle, spin to back mount, etc... whatever you want
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