Why is it when this happens?

Why is it in movies and in real life when somebody grabs their throat the first thing they do is start pulling at their arms or their fingers like nah it don't work why are you trying that

And don't tell me it's just panic cuz I've had it done before and a no point did I try to grab hands
Punch them in the throat kick him in the groin pop a knee out of socket not just flail around like a dying fish like what is this.
Why is it when this happens?
Why is it when this happens?
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