        When she got there, she stopped and tilted her head under her belly.  He couldn’t tell what she was doing, until her saddlebags slid off sideways.  Paying him no attention, she rubbed a spot on her stomach—which seemed a very human gesture.  Dogs and cats usually scratched with their back legs.  It took him a moment to realize why: she had far more flexibility in her forelegs than a normal quadruped.