Mayissa,

I respect your dedication to Zorro. You really are trying and that's great. I don't really have any suggestions on how to help his aggression but the past posts are very helpful.

You probably already knew this, you seem to be knowledgeable, but just in case you didn't I'll tell you...it's very threatening for a dog to be looked in the eyes. When people approach you and Zorro, advise them to not look at Zorro, look around his face, not at it, and look down to the ground and talk calm, move slow, and use common sense and don't walk too quick towards him....let him discover them....and lots of praise when he does not act aggressively.

Good luck, I respect your commitment to him, it's a very challenging problem and it may take a LONG time to control but it sounds like you are well on your way.