Scooter,
You did the right thing. I had a friend with a 150 rottweiler and he bit another one of our friends 5 year old in the face when playing with the kids. The owner of the dog wanted to put the dog down right there on the spot. The stupid dad of the kid said no the dog was just playing. The boy needed 4 plastic surgeries to his face. The dog was never put down and plays with the kids still. I think that dog and the dad needs to be put down together. Some people are just stupid. You can replace the dog but not your family. You definitely did the right thing.