AN EXTRACT FROM THE BENIGN BC ZERO TOLERANCE POLICY STATEMENT....... ( Volume 3 ,  Page 347 , Paragraph 486 , sub-paragraph  F )

" Offering Congratulations :

These are completely forbidden in all circumstances . Attempting to offer congratulations , no matter how small , will result in the errant member forfeiting his/her membership rights immediately ,  and permanently.
Congratulating oneself will be regarded as a provocative act of sickening smugness , solely designed to get all the other players' backs up .
Congratulating one's partner will be deemed as an act of unforgivable  rudeness by innuendo ,  suggesting that the opponents bidding and play of the cards was grossly inept and woeful .
Similarly , congratulating one's opponents will be treated as a complete snub and unwarranted criticism of partner's wretched inability to engineer their downfall in either the bidding or the play. "