As some others said, turning the hand works perfectly.
It's a very akward and unnatural movement from the sitting position and helps your brain snap to attention when fatigued. You have to think a little about where the hand is going when turned like this, as well as look where it's going. Also pulling the lever is equally akward with the hand turned the wrong way, and tends to be a slower, more deliberate pull vs the hard yank everyone seems to do normally.
And as a fail safe, have the other pilot guard their collective with a locked arm. No way you could overpower him/her from your side with the hand turned about this way.