I met him twice. Once he came to visit my yeshiva, and I only met him for a second. The second time is a better story.
My younger brother is good friends with R’ Scheinberg’s great grandson. When he put on tefillin for the first time, R’ Scheinberg came to the US for it. That Shabbos, I was out walking, and I happened to see R’ Scheinberg walking out of a shul with some people. They were walking in the same direction as me, so I decided to walk near them and listen to what he was saying. One of the men noticed me, and asked me if I was waiting to wish the Rosh Yeshiva a good Shabbos. I wished him a good Shabbos, and also added a mazal tov. The man asked me what the mazal tov was for, and I told him about the great-grandson putting on tefillin earlier that week.
R’ Scheinberg replied to me, “Good Shabbos, and thank you. One day you should be zoche to see the same thing!”
I got home, all excited. I told my mother, “I met R’ Scheinberg, and got a bracha for long life – he said I should see my great-grandson put on tefillin!”
She replied, “Even better, your great-grandson will be frum!”