Stressed out doesn't necessarily mean striking. Stressed animals can also get very calm and lethargic. Take a trip to your local pet shop/superchain that has incorrect husbandry. You won't see animals breeding, you wont see fighting, or much activity at all for that matter.
I know we are talking snakes but if you look at many peoples "puppy dog tame" monitor lizards and tegus that just lay around and do nothing. Those animals are actually incredibly stressed out to the point that they just shut down and dont move.