Suffering for the sake of the community: Ketuvot 8b
Ex-communicated a man who stole from an orchard he was guarding, and then was ex-communicated back for ex-communicating him over money; his declaration was not upheld, but the other's was: Moed Katan 17a
Reish Lakish was upset when a man who carried him across a puddle turned out to be a learned person, but contented himself with teaching the man when the man refused to obey his order of, "Throw the son of Lakish into the water!": Megillah 28b
How Reish Lakish began his teaching of the Purim Story: Megillah 11a
How Reish Lakish began his teaching of the laws of Sotah: Sotah 2a
Reish Lakish was considered one of the "Sharp People of Israel": Megillah 28b
Reish Lakish declared, "The moon was created to enable learning at night!": Eruvin 65a
Reish Lakish lying on his belly in the beit midrash and asking a question: Zevachim 5a
Asked Rabbi Yochanan, "Is this teaching ugly to you [that you don't rely on it]?": Kiddushin 9b
Reish Lakish said, regarding a statement of Rabbi Yochanan, "If not for the fact that a great man [Rabbi Yannai] praised you, I would have interpreted the issue differently.": Makkot 21b
The way Reish Lakish used to begin teaching the Torah portion on the Cities of Refuge: Makkot 10b
Reish Lakish and Rabbi Yochanan studying Jewish texts which were not law-oriented [Aggadata] on Shabbat: Temurah 14b
Reish Lakish reviewed the relevant material 40 times before going to Rabbi Yochanan for a class on it: Taanit 8a
Rabbi Yochanan and Reish Lakish's son: Taanit 9a
Rabbi Yochanan saying to Reish Lakish's son, "Had I arrived at that verse [that you just explained], I wouldn't have needed you or your teacher, Rabbi Hoshia": Taanit 9a
Reish Lakish's wife was concerned that Rabbi Yochanan might harm her son, as he had harmed Reish Lakish: Taanit 9a
Rabbi Yochanan advised his family members regarding a way to limit their obligation to feed their father's wife. Reish Lakish argued that the method he advised would actually create a greater obligation for them, and when they pointed to Rabbi Yochanan as their source, he said to comply, or he would "take Rabbi Yochanan out of their ears." Rabbi Yochanan told them to comply, since his peers disagreed with him: Ketuvot 54b
Reish Lakish and other Sages
Reish Lakish was angry at Rabbi Elazar for giving Rabbi Yochanan's argument without citing him: Ketuvot 25b
Rabbi Elazar provided a tannaitic source to support Reish Lakish's argument, and Reish Lakish replied, "I brought you a mishnah, and you bring me a lone tanna to support me?": Zevachim 5a
Reish Lakish using the phrase "May I be a merit towards the forgiveness of Rabbi Chiyya and his sons," in respect for his deceased Rebbe: Succah 20a
Reish Lakish gave a huge eulogy for a deceased young scholar, and then Rav Nachman bar Yitzchak declined to eulogize, saying, "He was just a basket of books!": Megillah 28b
Reish Lakish and Rabbi Elazar had a disagreement about a law, and in a later discussion Rabbi Yochanan stated an opinion matching what Rabbi Elazar had said, leading Reish Lakish to express anger at Rabbi Elazar for not citing the view as Rabbi Yochanan's view: Makkot 5b
Rabbi Yehudah bar Nachmeni functioning as his translator: Temurah 14b
Reish Lakish and the students of Rabbi Chanina were in a quandary regarding a law. Reish Lakish said they should act on a certain suggestion, and then ask on arrival by the sages of the South. When they arrived, they asked Rabbi Efes, who agreed with their method: Eruvin 65b