One of them was a decent hiker buddy of mine and had always had some weird quirks like that but he’d never done anything this bad. Thankfully it was a group of 12 and losing 2 wasn’t that big of a deal other than worrying about them. Myself and 2 others were experienced enough to still handle the rest of the group but the hiker that had ditched us was the only one who’d ever done Paria before so it was pretty messed up. Turns out Paria is a one way in one way out canyon so it ended up fine.