Background: Our neighbor has 2 adult Fila's (1 male, 1 female - they are mother and son) who have now "accidentally" bred and now there is also a male pup (approx 4 or 5 mos) that the ownder kept from their litter that lives in the kennel with them - none of them spayed/neutered. The dogs are kept outside in a kennel that faces the side of my house (about a 1/2 acre away) that they have been escaping from pretty often since we moved there a year ago. The neighbor is not very social (or responsible

) and neither are his Fila's. The male (Gus) will sometimes come over and get into it with Mason, our foster dog (both dogs barking viciously and jumping at the fence). The female is quiet but has a stare that will cut right through you. Just 2 weeks ago, the adult male was loose and charged
through our gate as my husband was walking through it. Gus had his nose to the ground and was making a low growling sound and charged straight towards one of our Shih Tzus. That was a heart stopper. DH dove in front of the Shih Tzu and Gus kind of trotted out of the way to the other end of our yard, but he was still inside the gate and wouldn't leave. So it was my husband in the middle, Gus at one end (cocking his leg on everything!), and our 2 Shih Tzu's at the other end - frozen in their tracks just standing there like a deer in headlights. Thank goodness Mason wasn't outside or all heck would have broken loose for sure. DH yelled and fortunately I was home and ran out to "rescue" my little fuzz balls from big bad Gus!!
ANYWAY - on to the reason for my post. I have been trying to work with Mason on leash walking and he also needs different avenues of exercise, and we are also working on his issues with lunging and barking at other dogs (we're working with a trainer on this at class and he is coming along nicely but we have no way to practice at home). The problem is that I'm really nervous about walking my dogs outside of my gate, especially Mason, because I never know when the neighbor's dogs are or will get loose - especially now that our walks are usually in the dark this time of year. It's bad enough if we were to encounter 1 dog on our walk and for it go sour, but 3 large dogs that are pretty much members of the same pack - I'm scared to death of how I would handle it if something were to happen. I suppose I could carry some type of spray for protection? Am I being overly cautious here or do you have suggestions. My other concern is that I know I'm nervous, so I'm sure my dogs will sense it and isn't that sort of setting them up for failure on our walk?
My husband has talked to the neighbor about his dogs getting loose at least three times that I know of - usually when he has to walk over to our yard and retrieve his barking dog from our fence, but most recently after the charge through our gate, my husband had to DRIVE to the neighbor's house and get the neighbor because the female Fila was standing between our houses and when DH started to move in the direction of her house, she gave a low rumbling growl with a stiff stance and a stare. I insisted that he drive to the front door and not chance an attack. All the guy had to say was, I put up and electric fence, I guess they just don't mind the shock - DUH! Another one that thinks they can just slap the collar on and send 'em out there I guess.
Does anyone have any suggestions on this situation or should I just continue to walk inside my fence (It is about an acre, but it gets a little boring day after day walking the perimeter of the fence!)
Thanks in advance for any help -