I intend speaking to vet who is behaviour specialist but she is away until new year wondered if anyone any advise. Our Lab is 7 when she was about 2 she was attacked by a staffy on our local park this happened twice both times she was on lead and couldn't get away. I stopped walking her on park for a while but one evening when walking her around streets met same dog the owner let it off the lead despite me screaming at him not to again my dog was attacked there was no where for me to go to get away I also got bitten. (reported to police etc. but that not the issue here). After this my dog became more aggresive towards other dogs especially new dogs - she had always been social running/playing off the lead on park now I don't let her off as I never know how she will react. She is fine with people and my 3yr grandson but when we go to the park dgs wants to run with her do you think it possible to re train her so not aggressive or do i have to accept that these attacks have changed her personality.