Identified the thief of a goblet by noting a student who wiped his wet hands on another's clothing, showing disrespect for his property: Bava Metzia 24a
Would ex-communicate himself before he ex-communicated a Torah Scholar, and then remove both of them when he needed to revoke his own: Moed Katan 17a; Nedarim 7b
Self-Deprecating when he was carried in on the Shabbat of the Holiday: Yoma 87a
