I love my snakes (mostly black rat and some garter). Been that way all my life and apparently it's not going to change. It makes me ill when people run over them on the road on purpose so I pick them up and bring them home to my property. Poisonous ones get picked up and relocated to the back or our mountainous property so they can stay out of harms way. As yet I've not had any problem with them in the coop, though they do cruise through the run occasionally. Black snakes actually den under my garage. Strangely, the chickens pay them absolutely no mind no matter what they're doing. I figure they keep mice and rats down and (even if they were to eat a few eggs now and then) they're absolutely worth it.