Minor stealth spoiler in tags below.
So my mercenary character is hunting bandits. Kills a whole camp of them living near the entrance to an "abandoned" mine. Sneaks into the mine to search for the leader.
Finding a pickaxe and several veins of ore, she starts digging. Sneaking further into the tunnels, she loudly crashes the pick into metal and stone over and over again. Approaching the final room, she mines a pair of rich veins just outside the chamber. Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Clank! Slowly, she creeps to the threshold to survey the tactical situation.
Then
Spoiler she brushes up against a hanging bones "wind chime" noise trap, which tinkles slightly, and the whole roomful of bandits comes charging out at her.