if i knew exactly where the menace was then i would. i don't know if he moves around or not but i've already dipped a couple other rocks with no success. haven't actually seen him but i hear him quite often. i just want him out, even if it turns out to be just a pistol shrimp, i'll sleep better at night knowing it's gone. i will try submerging while keeping the leather out of the water, guess that would be better than dipping it.