I met him in shul this morning. As he was preparing for himself a morning hot drink, he asked me "Do you know where I am from?"
I didn't.
"Aushwitz".
I didn't.
"Aushwitz".
כי לעולם חסדו!!!
The chasidim of the Satmar Rebbe were once upset that he was leaving. He told them that they don't have to worry. If they want brachos they can go to shul in the morning and see any Jew who rolls up his sleeve to put on tefillin and ask him for a bracha. Such people are tzadikim.
So I asked him to give my son a bracha... and he happily complied.