Rav Yitzchak bar Yosef established a Mishnah as discussing an odd case, rather than have it disagree with Rabbi Yochanan: Shabbat 112b
Rabbi Yirmiyah dozing off before his students, Rav Huna and Rav Yitzchak bar Yosef; then waking and calling them "Children!" correcting a statement of theirs from when he was "asleep": Gittin 11b
Rav Yitzchak bar Yosef on the sound of the blowing of the Ram's Horn on Rosh HaShanah in Yavneh: Rosh HaShanah 30a [2x]
Rav Yitzchak bar Yosef meeting Rabbi Avahu in a public gathering in Usha: Ketuvot 50a
Rav Yitzchak bar Yosef repeating to himself forty times that Rabbi Yosi bar Chanina was the author of a particular lesson, until it was like it had been placed in his pocket: Ketuvot 50a [and see Maharam Schiff there]