I think you did well to not put him on his butt
and kicking the dog to stop it from attacking you child, I would have killed it right then and there
the dog comes back in my yard the next day, I would run because it's a ghost, I killed it the day before....LOL
ok really I would talk to your neighbour and say, your dog attacked my child, so you need to muzzle and tie up your dog, if it comes into by back yard again I will defend my family and I will call the police and dog pound
you may want to call them today anyways