been there got the postcard and Tshirt, i dealt with it by talking individually to the good ones telling them my reasons for cutting contact with the bad ones and emphasising that i still wanted contact with them as an individual as long as anything i told them was not passed on to the bad ones and likewise anything they knew about the bad ones was not talked about to me. I also told the bad ones individually why i did not want contact with them anymore and stuck to my guns of putting down the phone when they called and did not reply or recipricate cards etc. it worked and many years on i still have contact with all the good ones and never hear anything about the others.