I was teaching a section at a multi-art seminar a few years back, and due to the large number of people there, I got a useful statistic.

We were exploring common 'escorting' compliance grips and I was able to define that 15% of the group felt no discomfort from the 'chicken wing' grip.
If you imagine somebody bending your palm and fingers towards the inside of your wrist, that pretty much describes it.
I'll dance an Irish Jig if someone puts it on me.

On another occasion, I had a guest instructor showing a technique using pressure against the 'filtrum', which is essentially where your nose starts above the teeth.
Everybody else was going Ow Ow Ow, but it didn't bother me in the slightest.

On another occasion, I had a guy tell me he could tell simply by looking at my face that I'd be susceptible to a particular pressure point.
Guess what.
He was wrong.

Add in the effects of drugs and or booze, then maybe we should be practicing Leg Fu or Parkour instead of MA?

Are MA what you do when you can't run fast enough any more?