No...cause snakes supposedly can be taught a time regement...that if you feed them a certain time of day at a certain time of the week, they'll know its feeding day
also my ball doesnt seem stressed when i put her in the box,she just stays in the middle and waits to eat,and when she's done i send her right back into the hot side...
plus I don't where people are getting its ok for them to get substrate in their mouth,isnt that one of the bigger causes of RI? so I guess if your snake does eat some substrate make sure its not stuck in their mouth and that they've digested it