[DF] Hiding from the Unhideable

[VariousRen]

A large number of dungeon fantasy creatures rely on non-standard senses like Detect(life), Vibration Sense, or some sort of scanning sense. This usually conveniently explains how they sense invisible enemies, attack in the dark, or get away with not having vulnerable eyes. Many of these senses also seem to work uncontested (make a Per roll and you know all life within 10 yards, or sense all vibration, etc.)

Thieves have the very cool power up Nondetection available, which gives such supernatural senses a -1 to Per for each level, but there are no written options that let you use Stealth to hide from senses like this. No access to stealth makes it fairly expensive to get up to effective levels with most creatures. I'm curious how these supernatural senses are intended to interact with Stealth, or with rules like Backstabbing which assume Stealth will get you within striking range.