It is so sad that big dogs get such a bad wrap. I grew up with labs and German Shepards who were so sweet and gentle. In fact most of the dogs that snap at Jack are little toy dogs. The dog that bit him was a dachshund. HOWEVER, as we all know it can only take one bite from a big dog to cause serious possible deadly damage, thus I am always more leary around the larger breeds. It is a sad but true reality. I once had a man with two adult pitbulls lecture me when I pulled Jack away from a meet and greet session on the street. He said something like "not all pitbulls are mean and people like you perpetuate the stereotype". I felt bad because I love all dogs, but should something stir these owner labeled "friendly dogs" , I know one chomp and Jack would be done.
I appreciate the ideas above. One never knows how they will react in the situation. However, the technique for pulling the hind legs is a good one to store away in the back of my mind. One never knows when this information may be applicable and save a life. In the meantime, I just keep Jack on close lead and keep socialization to the neighborhood dogs I really know well.
Glad to hear poor Ben is seeming a little better today. I cringe everytime I read about him being shaken by the bigger dog. Give him lots of gentle kisses and hugs from Jack and I.