Agree - report. Be wary of warning signs from your dog - sounds like possesive agression - try an extendable lead maybe, or stop that sort of behaviour before it starts - like not letting it carry around things that could cause possesiveness.

Out of curiosity - why did you step away when your girlfriend was being put in a headlock and getting her hair pulled??!!!! I would be equally mad at my other half if he didn't step in if i was in a fight out of no choice of my own. No offence intended as you shouldn't be encouraging fighting - but stepping into defend her surely?!

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Indy - Old Tyme Bulldog x Bull Terrier, born 26th August 08