George seems to lack confidence, that much is clear. But let's not jump to conclusions of abuse just yet. He's probably had ZILCH in the way of socialization and he was living outdoors. Read this article: http://www.ukcdogs.com/WebSite.nsf/Articles/NADOI01232008 George will need a lot of guidance from you so he can ascertain what is appropriate in your household. Continue your basic obedience work to give him more confidence. Reward often and ignore mistakes. Get him out and about every day to experience "sights and sounds". Keep him on a leash when guests arrive. Instruct your guests to not stare at him or reach over his head. Let George approach them when everyone is sitting down and less threatening. Have your houseguests toss him treats or toys. Let him initiate the interaction, and when they pet him, instruct them to stroke under his chin/chest. You may never be able to completely overcome his fearfulness, but with a lot of work he may improve and be managable. Good luck.