http://revach.net/article.php?id=3891

Section:  Avodah   Category: Olam HaTorah
Rav Chaim Brisker Heeds The Bubba Meisa
One time Rav Chaim Soloveitchik paid a visit to his elderly cousin.  When he walked in to the house a button fell off his coat.  His cousin quickly took out some thread and she sewed the button back on while Rav Chaim was wearing the coat, which is said to make someone forget his Torah.  Rav Chaim then employed the known antidote and took the edge of the collar and put it in his mouth.

Puzzled, Rav Chaim's cousin said to him, do you really believe in these Bubba Meises?  Rav Chaim answered that when it comes to anything to do with forgetting Torah he doesn't play around and he even takes Bubba Meises very seriously. (Dirshu Chizuk)