MANY years ago, we saw coral snake skins on our patio.
Hubby said it was nothing to worry about........until we found a coral snake (not just the skin), inside, a few weeks later.
Had the exterminator come out and never had the coral snake problem, again....thankfully.
I’ve had some close encounters with rattlers. Never a coral.
When I was a horse rider, the only time I would let a horse get away with suddenly acting up and fearful, get away with not going where I wanted it to go, is because it was probably a rattler. Of course a lot of the places I rode the probability was higher, lol.