The Drunk Rosh Yeshiva

(riddle)

שאין חלום בלא דברים בטלים

The Steipler zt"l said, there once was a Rosh Yeshiva 

who got drunk on Purim and said they should ask him 

any question in Shas and he will have an answer.

They asked him from the gemoro Nedarim 8 a+b

"If someone dreamt that he was put in Cherem and

they were Matir his Cherem, he must be Matir

his Cherem again after awakening. 

Because we assume part of the dream to be true and

part not to be true, We assume the true part of the dream 

was being put in Cherem and the untrue part of the dream 

was they were Matir him".

The question they asked from the Rosh Yeshiva was:

"why don't we assume the opposite, that the untrue 

part was being put in Cherem and the true part

was them being Matir the Cherem, and he wouldn't 

need another Heter after awakening?

The Rosh Yeshiva answered that according to the Rishonim

who hold Cherem is Deorysa and even if it is only divrei 

kabbalah, when there is a Safek we need to go Lechumra 

and assume he didn't have a Hatara.

The Steipler said from the answer he gave,  you

can tell he was drunk.

How did the steipler know that the Rosh Yeshiva was drunk???

Click here for answer