I already have "Beware of Dog" and "No Trespassing" signs.

My insurance agent told me a beware of dog sign does noting to protect you from being sued, you HAVE to have both signs in order to protect yourself from lawsuits!!!

I was glad to learn that!

Yeah, people get pretty scared when they come charing across the yard, some friends and family that are over more than others are used to it and stop and turn to them and tell them "NO" and for the most part they listen to them!
But it's scared people
(like my mother in law that is deathly afraid of Buddy )
that the dogs sense her fear and feed off of it!!

Thank you all for the input! It all really helps!!!!