Small joint manipulation - credible threat or gimmick excuse?
I have been discussing aspects of BJJ with a women's self-defense instructor (not my idea), and our conversations are typically very awkward and bizarre. I was describing a guillotine choke earlier (to explain why my neck hurt), and the instructor decided to illustrate how a guillotine would be handled in the context of self-defense. Now at that point all I had explained was that a headlock type of hold was involved, and the counters that were listed to me included: punch to the balls (which caused me to blurt out "yeah, good luck with that"), elbow to the solar plexus (chalk that up to me not explaining thoroughly), and small joint manipulation.
Obviously those strikes are not viable escapes. But small joint manipulation, for instance breaking a pinky finger to loosen a hold - I wonder, is that a serious threat to a BJJ player? I hope someone with experience can comment on this.
From my admittedly non-expert perspective, it seems like there are many situations where a superior grappler can control one or both of a person's arms without exposing their fingers, but it seems credible that some positions or subs might expose the fingers. I think it was on submissions101.com that they suggested that when you try to apply an RNC in a streetfight, you ball your hands into fists once the choke is in, to protect your fingers.
Does anyone have anything more solid than speculation to add to this?