I'm glad to hear everyone's ok--it's funny you posted this, because I had this problem today too.
Across the street, there's a golden named Max--he's nice enough to me and my husband, but he is dog aggressive. I went to take Kito out yesterday, and I looked out the window, and there was Max in our front yard. I walked out (alone), and told Max to find his home, and he walked me right to his house, and his mom had no idea he had gone anywhere. I explained to her that I have 3 dogs, one of whom is not too fond of other dogs either, and could she please make sure Max is leashed or in the yard. "No problem" she tells me--guess who was in the yard again this morning
Doesn't this lady even care that her dog could get hit by a car or something?? He's very nice, but I don't want him in my yard.