R' Ahron Kreiser Zatzal told me about the beloved Mashgiach of Baranovich, R' Yisroel Yaakov Lubchansky Zatzal, who was the son-in-law of the Alter. He ran the Yeshiva, and was heavily involved and completely devoted. He was known to be a tremendous Talmid Chochom. But whenever he mentioned a Gemara, he would say: "I heard of a Gemara" and the Olam would tease him about it, since they knew that he doesn't want to advertise his greatness in Torah.
He was considered the greatest speaker of all the Mashgichim, and when he spoke, the entire town of Baranovich came running in panic to hear him. This included even Yidden who were barely frum. He was also funny. He once spoke in Bialystok at the Alter's Yahrtzeit, and he said: "What I'm saying now is no lie. If I want to say lies, I can go lie in Baranovich. I don't have to come all the way to Bialystok to lie."
He always tried to be colorful and Geshmak. Once, on Zos Chanukah, he spoke at 11:00 at night, and he said: "Look what a miserable job it is to be a Mashgiach. Everyone is fast asleep, and I have to rack my brain to find something to say. What a miserable way to earn Parnasa!" He and R' Elchonon Zatzal would go from store to store to make sure everyone will close for Shabbos.
He threatened to curse anyone who didn't close, and the townspeople were terrified of him because his curses worked, Rachana Litzlan. He would say: Do you know why are there are so few people in this world who seem to "have it all"? Because before a Neshama is born, it is shown the Neshamos of these "lucky ones" as they are dying and coming back to Shamayim. When they see how ugly these "lucky" people's Neshamos look, they beg: Please! Don't give me that person's "good" Mazal!
There was lots of laughter and humor in Novardok. In Slabodka too; R' Hutner and R' Beinish Finkel Zatzal were very funny. Once, a friend of mine passed a repair shop in Eretz Yisroel and he noticed a picture of R' Gershon Liebman Zatzal. The owner told him that he was a young boy learning in R' Gershon's Yeshiva. R' Gershon was like a father, and he helped him cultivate his talent for singing. He was fixing a wheel, and he said that R' Gershon taught him that every tiny fix that he made was really Hashem.