Yeah but accidents happen and this clearly was that. putting down a dog for a genuine accident that the owner is admitting to and trying to learn from and avoid is slightly pathetic.. It wasn't a vicious attack, especially if witnesses were there and can attest to that.
I agree with the others about just securing your dog better and socializing with dogs you know, on neutral territory. How old is your dog?
Commander Charly Titan (GSD)-15 Jan 2010