Salmonslayer had decided to get a dog for protection. As she inspected a likely candidate, the trainer told her, "He doesn't like men."
"Perfect," Salmonslayer thought and took the dog Wiggles home.
Then one day she was approached by two men in a parking lot, and she watched to see how Wiggles would react. Soon it became clear the the trainer wasn't kidding. As the men got closer, the dog ran under the nearest car.
For those who understand no explanation is needed, ...For those who don't none will.