[mlyle]

It's not a great mitigation, but the last thing on runaway stabilizer's memory list is to "grasp and firmly hold" the stab trim wheel.

[SAI_Peregrinus]

The electric motors can apply more power than a human can resist. So that's not exactly helpful.

[mlyle]

The system is engineered so that an operator holding the trim wheel wins, via a clutch mechanism.

[userbinator]

I believe there is a clutch mechanism. There are videos on YouTube of pilots doing this (in a simulator.)