Don Carlo didn't follow that "rule" himself. About a month before Joe Colombo was shot he was in a bar in Brooklyn celebrating some activity with some of his crew. Gambino, along with some of HIS crew walked in approached Colombo and slapped him on the face while telling him to stop all the crap with the anti-defamation league. Colombo had to just "take it" and Gambino and crew turned and walked out of the place.
