We have all talked about opsec. We all know that there are few people we can really trust. It has been mentioned before that some neighbors might be useful for work and security after a situation. I usually feel that I have most of my neighbors pegged pretty well. However, it has been on my mind a lot lately. I seem to be second guessing myself alot. I can find no apparent reason for this. No real changes anywhere. So my question is: how do you really evaluate your neighbors? What are the signs you can watch for?