Sort of related...partially hijacking...
I am so irritated tonight... my DH and dog were walking. Riley is a 75 pound dog, part white shepard, part yellow lab. Sweetest dog ever...at least equal to the dogs you all are talking about, except a little smaller

. He is 12, and we've had him for 4 years. My dog is well socialized, goes to daycare weekly etc.
We are walking past the house that we refer to as the "yipper" house. 4 terriers at this house, 1 electric fence. The electric fence is the dogsitter at this house. We hate walking past this house, it is on a corner. The dogs yip the whole time you are going past their house. So - tonight...the electric fence is not on, and doggie parents are not outside. So - two of the dogs come out onto the street and start growling and snarling at my dog. I saw my dog bare his teeth for the first time ever.
DH gets between the 2 dogs and our dog, I quietly walk away with my dog. About a minute later, DH realizes that the dogs have once again left their yard, and the dogs are following us. DH kind of stops, and I continue to walk around the next corner with Riley. Out of site out of mind...they dogs went home.
SORRY - I HATE ELECTRIC FENCES. And these dogs are why.
OK - I feel better now. Hopefully - the fence will get turned back on before tomorrow.