The adventuring party needed a thief to clear traps, but all that was available was a beginner named Lucky Lightfingers.
He wasn’t very lucky, though, and the priest grumbled displeasure at Lucky’s incompetence as he healed up the others.
The dwarf and the barbarian were tired of hauling each other out of pits full of spikes, too.
So, they clubbed the thief dead, and the priest raised him as a zombie.
For the rest of the dungeon, they ordered Lucky to set off tripwires, pressure-plates, and traps on every treasure chest.
They gave his share to his next of kin.