Ummm...generally they lay on their backs when molting
I think if you touch him he's either dead or very close. Legs curled up under them is generally described as the "death curl". OBTs are very flighty, I can't imagine him letting you bump him without moving at all. I go near mine and he runs like hell. Hopefully more experienced people will chime in, but I'm going with the death curl right now.
I've heard if you put them in a tupperware with a lid and put some damp paper towels as substrate and lock them in it, if the cause was dehydration they will sometimes snap out of it.![]()