Our feeling is that the most important thing on a set is that actors have enough confidence to try different things. If there's stress or tension, they won't go out on a limb because they won't want to embarrass themselves if they don't feel completely comfortable.
“Just able barely to mount a horse and ride about a little in the spring of 1866, my life was threatened daily, and I was forced to go heavily armed. The whole country was then full of militia, robbing, plundering and killing.”