Hi IMBJ, I'm not in Japan but my son & grandsons live in the Bay Area and he has a friend who teaches in Tokyo. No word yet from her. I'm glad so glad the tsunami spared SF. I hope you and your B are okay!
If they do, it could be because they want to feel more like part of the family, or it's just a particular animal's personality and that animal was matched with the person meant for it.