Well, I've never used Scorpion Traps. Never saw any need for them as I never met anything in the Game that I couldnn't Kill myself. The question I have on the Scorpion Traps is: Are they "Selective" in what/Whom they will Attack/Kill?
I mean,suppose You let a few Loose in a CITY--Will they attack/kill everyone or are they LIMITED to only the killing of MONSTERS?