They said they would make an extra effort to make sure she didn't get loose. They also offered to pay to replace Ezmarelda. I have only let them out once since the incident and that was for an hour with me. They stayed very close.
That is so sad. Were you able to come to any sort of understanding with the neighbor about controlling their dog? I'd be terrified of letting our ducks out even if I were out with them if I had your situation.