About 20 years ago, maybe longer, I wadded some deer netting and temporarily stored it in the corner of our old barn. Went to deal the netting a few weeks later, and at least six large rat snakes were tangled and dead. They crawl into the netting, get trapped, and can't back out.
Just two weeks ago I used some netting to protect some fruit trees from the deer. Once again, being a slow learner evidently with bad memory, I placed the netting on the ground and left it for about a week or two before returning to roll it and place it on a shelf in the barn. The oldest, biggest blackest hog nosed snake that I've ever seen was tangled and dead. She broke in half during cleanup, and the critter contained an almost fully developed egg case, so a double hit! In the future, I'll never leave the netting in contact with the ground, or anywhere else where our snakes are likely to get tangled.