What NOT to say to people affected with breast cancer

One of the nicest things said to me was from a group of girlfriends I work with. When I told them my diagnosis they said "you are not alone in this, we are all here with you". They gave me my space but picked me up for a coffee/dinner or simply phoned to say they were thinking of me and could they do anything.
As others have said (except for the handful of completely insensitive, ignorant fools!) most people don't know what to say and default to telling us to be positive and strong. Jane xx