I just saw this story which you folk may have heard of already. What incredible senses dogs and cats often have. I've heard of dogs staying with hurt or dead owners for days and resisting all efforts to move them. Such empathy:
I think so too willowangel..and I felt..glad..really glad..that this cat ensured these people were not alone. I'm sure many of them had a sense of a presence there and I am really touched by that potential.