Watch Your Step!
Common59.1%ObjectiveOptionalAnywhere
Become a victim to a nasty underground trap.
Take a dart to the face, step on a pressure-plate boulder, or find a detonator the hard way - any underground trap counts, and the caverns will oblige you sooner rather than later. If you're forcing it, find a dart trap (they line cave corridors), stand in front and wait. Wear the bruise with pride.