===Acid Rain===
Due to an oversight, [[Wandswands]] of [[Wand_of_Acid_Rain|acid rain]] can destroy terrain without drawing any hostility to the player. In addition, acid puddles left by acid rain also do not draw hostility to the player if stepped in by neutral or friendly characters. Acid rain only turns NPCs hostile if it rains directly onto them.<br>
As such, it can be exploited in various ways, such as destroying the sumo arena and covering the floor in acid for an easy win, or causing wandering NPCs like the Patrol guard to melt to death.