What do you do when the opponent, from their half-guard, gets an underhook and begins to escape from the bottom? I normally use what I think is a whizzer on their underhook arm and just push their head down with my other hand and work them into a headlock/guillotine. Normally this ends with them still escaping to their knees but I have control, a sort of front headlock position, to work from. So not all is lost. I'm pretty sure the choke that's open as an option from here is the brabo choke. Does anyone have some pics or a video link for this technique?