From Rawles Survivalblog. Defending Static Positions in a Survival Setting JWR asks the question: In a world without advanced medical care or even antibiotics available, who in their right minds would risk repeated attacks on a resilient target? I would guess the desperate scum of the earth that are raiding out of local urban settings after those locations have been picked clean (are the People of WalMart armed?). Once they know you’ve got I would venture they are going to be willing to go to great lengths to try and get it.
Worth the read, maybe you’ll get a few ideas from it.