I'm absolutely with you on that one. Not the only function, but it is certainly one of the things that I think I appreciate the most in the companions. Rose is someone that I really liked because of her interaction with everyone she came into contact with -- Jack, Mickey, Jackie, Pete... I loved Billie's chemistry with all of her co-stars. She always made me smile (...well, okay she often made me cry, too, but that's beside the point!!! *LOL*)

^_^