Nurse Rhonda (who answers my ridiculous, sometimes paranoid questions without ever laughing in my face and who insists on hugs from the kids before, after and during every visit - I adore this woman) is chatting with Roxi while Gib bravely endures a flu shot.
Rhonda, pointing to a chart of the skeletal system on the wall: Roxi, what is this?
Roxi: That's a femur!
Rhonda, looking at me somewhat surprised: I was expecting "knee."
Roxi: And there's the rib cage and the lumbar vertebrae!