What about this...
I was detecting traps in Irenicus dungeon when I found one I wasn't quite able to undisarm it so I made each of my NPCs pass caerfully to a side of the trap. but Imoen (who was detecting the traps) didn't follow my directions and simply went straight through the thing and got stunned to death.
and so,
I TRIED AGAIN AND AGAIN, BUT SHE KEPT PASSING THROUGH THE THING.
in the end I simply made her wait behind the trap.
