Has anyone cancelled after a Meet and Greet due to dog's behavior - in this case, fear aggression?

After the Meet and Greet, I was still a little uneasy but that feeling about the dog only grew after a day. I cancelled late because I knew the dog would sense my fear and I would make the situation worse, The dog's owner was very nervous during Meet and Greet and let me in only after her husband came into the room. The dog was totally different around her than with him. I have dealt with Fear Aggression but not when the dog was a huge Pit mix that snapped at me twice and bit my shoe. The owner was very worried about other dogs and explained that her dog was "Dog Aggressive."