. So the question is, do you socialize the dog and familiarize them with hugs and people up in their faces, or is it more the dogs that have people doing this, and are displaying increasing discomfort with it, the ones that are more likely to lash out?
You do your best to get your dog used to handling. I think it works best when you get him as a pup.
But if the dog doesn't like whatever is being done to him, I do believe that one day the bite will ensue, meaning, "What part of I don't like that don't you understand? Here, let me escalate and get my point across more clearly..."
It really depends on the temperament of the dog.