Keep it up. Do lots of research. Like someone above said they have to earn trust and using POSITIVE TRAINING methods is the best way. You can't really fight aggression with aggression so scolding will just provoke him more. Sound like he might need professional help, but you will be with him most of the time so the more you know and the more you do for him the better.
There are some good books too, I think one is Yorkshire Terriers for Dummies but there are others people could probably suggest that would help. Maybe some books on clicker training and positive training. I've also seen good videos on youtube by username kikopup
He probably needs a lot of gradual exposure to men with lots of praise and positive training like you said it will take time
Last edited by YorkieMiki; 02-08-2012 at 02:07 PM.
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