Related for Kiddushin 163:12

(Translated from Ehrfurt manuscript:) One wife can be secluded with 2 men, even if both of them are kuti'im, even if both of them are slaves, even if one of them is a kuti and one of them is a slave, even if one of them is a minor, except for a minor with regard to whom he [the adult man] has no shame to have sex in his [the minor's] presence. But she should not be secluded with any Gentiles, even 100 [of them]. His sister, his mother-in-law and any other person with whom sex would be forbidden—he should not be secluded with them except on the basis of two [witnesses]. Rabbi Elazar says: A man who has a wife and children but doesn't live with them shouldn't teach children [Scripture]. Rabbi Yehudah says: A single man shouldn't shepherd small cattle, and two single men shouldn't sleep in one cloak. They said: Yisrael is not suspected of such [bestiality].

(Translated from Ehrfurt manuscript:) One wife can be secluded with 2 men, even if both of them are kuti'im, even if both of them are slaves, even if one of them is a kuti and one of them is a slave, even if one of them is a minor, except for a minor with regard to whom he [the adult man] has no shame to have sex in his [the minor's] presence. But she should not be secluded with any Gentiles, even 100 [of them]. His sister, his mother-in-law and any other person with whom sex would be forbidden—he should not be secluded with them except on the basis of two [witnesses]. Rabbi Elazar says: A man who has a wife and children but doesn't live with them shouldn't teach children [Scripture]. Rabbi Yehudah says: A single man shouldn't shepherd small cattle, and two single men shouldn't sleep in one cloak. They said: Yisrael is not suspected of such [bestiality].

Any man who is occupied with women/wives shouldn't be secluded with women/wives, e.g. those who sell nets, who sell flax or hatchelled wool, weavers, perfume sellers, tailors, barbers, launderers, whetters [of millstones]. (Translated from Ehrfurt manuscript:) Rabbi Meir says: There is no trade that passes from the world but woe to a man who sees his parents in an unfit trade. Rabbi says: A man should strive to teach his son a clean and easy trade, and pray to the One to Whom wealth belongs, for there is no trade that doesn't have in it poverty and wealth; this is to tell you that wealth and poverty doesn't come from trade [but from God].