Had similar happen to my labradoodle last November. Was walking him at the local park, on his lead and as I got near the fenced in play area (slides n swings etc), a woman who lives near me was inside the play area pushing her kid on the swing but had decided to let her boxer run loose outside of this play area. It came straight at us, grabbed my dog on its side, causing slight a puncture wound, then grabbed my sleeve in the melee, then as I tried to lift my dog up in the air, the boxer grabbed his tail and was literally hanging off his tail.....the dopey owner at this point started calling her dog and started to run towards us, whilst I was kicking seven bells out of it.
He then loosed and ran back to her, she started waffling about he had never done this before, till I shut her up, by giving her a round of *****
I went straight home and called the police, not because of it grabbing my dog, as dog on dog is not an offence. I reported her because of it grabbing me. At no point was I looking for her dog to taken off her etc, just that this park is for kids to play in and is about 30 yards from a nursery and infant school, God forbid it had grabbed a small child instead (have a photo from the local rag from about 15yrs ago, where my son was grabbed in this park by a "bulldog" type dog(his description, aged about 8) that wasn't on a lead - so I have experience of this) The police spoke to her about this and advised her that she should keep it on a lead in future.
Haven't seen her round there since.
He then loosed and ran back to her, she started waffling about he had never done this before, till I shut her up, by giving her a round of *****
I went straight home and called the police, not because of it grabbing my dog, as dog on dog is not an offence. I reported her because of it grabbing me. At no point was I looking for her dog to taken off her etc, just that this park is for kids to play in and is about 30 yards from a nursery and infant school, God forbid it had grabbed a small child instead (have a photo from the local rag from about 15yrs ago, where my son was grabbed in this park by a "bulldog" type dog(his description, aged about 8) that wasn't on a lead - so I have experience of this) The police spoke to her about this and advised her that she should keep it on a lead in future.
Haven't seen her round there since.

). He is also never aggressive unless threatened and even then, he calms down instantly when I put my hand on his upper jaw.
I then stop and turn around and make a loud noise and it stops and just stands on its back 2 legs barking away. As soon as I start moving again it would start following me. It did this a couple of times and I luckily managed to get to my door before it got close enough to find out what it was planning to do.