Abhiram: Once in Calcutta I had a little tiff with my wife, and Srila Prabhupada somehow became aware of it. It was not known in the temple, but that day Prabhupada could see that I was disturbed and when he probed I mentioned that that we had had an argument. Then Srila Prabhupada spoke about his family life. With the greatest sincerity and humility he said, “My wife was very tolerant. That was her great qualification, and to this day I regret how harsh I was. But what can I do? I have a hot temper.” He was feeling, to use his words, “A little remorse.” Srila Prabhupada was not only a powerful orator, a knower of the Supreme Truth and the mystery of the Bhagavat, but also a person who felt sad if he had hurt others, or could laugh heartily on hearing a good joke. In every respect he was a most sublime and developed person.
Source: Remembrances by Sidhanta Das – Folio Vedabase