“The bochur was smart but a big lets. He never took anything seriously enough to be matzliach.” (Weiser)

 “For his own good, I wouldn't let that letz meet the Rosh Yeshiva.” (Weiser)

"Many examples of heter agunah Tzemah Tzedek (Rav Krochmal), Chacham Tzvi, Elef Lechah Shlomo, Rav Shlomo Kluger and the case of a letz, a joker, and his status as a reliable person, Rav Moshe Feinstein - husband sent to Siberia in 1943 and fails to permit agunah" (source)