JWs avoid using the words "Luck" and "Lucky".
Years ago I recall an elder giving 'friendly advice' from the stage after a younger brother used the word lucky in his # 2 talk. I felt bad for this younger brother as he was
quite embarassed. Couldn't the elder have said this to him privately? No, he had to criticize him publicly in front of 100+ dubs. This younger brother had obvious self esteem
issues and was very shy, the elder really should have been more tactful.