[CarbineCaleb]

I also don't think aggression trained dogs are a real good idea, unless they are firmly in control of the owner at all times - and probably still not the best idea if you have a family - can't actually watch all the time. Chewed up mailmen, paperboys, girl scouts, neighborhood kids, parents, wife and kids... not good.

As far as deterrent around the house, I think it's enough to have a dog that's big, alert, and a good barker - two even better. Research I read showed that large barking dogs were the best deterrent to burglars (more than fences, locks, alarm systems or S&W decals).