In 5709/1949, Yud Beis Tammuz fell on Shabbos. The Rebbe Rayatz farbrenged with the Chassidim on the following day, while the present Rebbe held a farbrengen on Yud Beis Tammuz itself. During his farbrengen, the present Rebbe poured out some wine and put it aside, saying: ???I am sitting here and speaking, but the Rebbe is right here! And as it would be very insolent of me to speak when the Rebbe is here, I shall be quiet and say no more.???

Afterwards, the Rebbe picked up the cup and put it down at his own place. He said, ???I thought earlier that since the Rebbe is here, wouldn???t it be rather insolent if I spoke? After all, it is the Rebbe who should be speaking, and if he is not speaking I should remain silent. Then I thought, ???But what are the Rebbe??'s wishes right now???? The Rebbe??'s wishes are that we should farbreng and speak to each other, because the Rebbe is davening right now. And I hope that the Rebbe will include everything that we say at this point in his prayers.???

Translated from the Kfar Chabad Magazine