Eruvin 63a and Eruvin 63b, issues of a student acting as a Torah scholar in front of his teacher, when it might be permissible, what punishments can come from it. From there to the importance of regular Torah study and of not interrupting husbands and wives’ marital intimacy. Then, back to eruvin questions, what to do when a non-Jew refuses to relinquish his rights in a mavoi.