Daf Yomi- Drunk Rosh Yeshivah

 

There  once was a Rosh Yeshiva  who said on Purim that  they can ask him  any question in ש"ס and he will have an answer. They asked him from the גמרא נדרים דף ח  a+b "If someone dreamt that he was put in חרם and they were also מתיר his חרם , he must be מתיר his חרם  again after awakening.  Because we must assume part of the dream might be true and part not to be true, We assume the true part of the dream was being put in חרם and the untrue part of the dream was they were מתיר him". They asked from the Rosh Yeshiva, "why don't we assume the opposite, that the untrue  part was being put in חרם and the true part was them being מתיר the חרם, and he wouldn't  need another היתר after awakening? The R.Yeshiva answered that according to the ראשונים who hold חרם  is דאורייתא and even if it is only דברי קבלה, when there is a   ספק we need to go לחומרא and assume he was put in חרם and didn't have a התרה The Steipler said, " from the answer he gave,  you can tell the Rosh Yeshivah was drunk." How so?