someone in the MotW game mentioned dowsing (specifically, seeing if they could dowse for where the monsters are crossing into their world); I was like, "yes, of course, that's a thing in this setting!" and then it reminded me about how my dad dowses.
...not for water, silly, he lives in the desert.
no, he dowses for buried power lines.
he likes to compare his dowsing notes to the maps the "call before you dig" people put out.
@titania hows his track record?