Mishnà su Giosuè 15:78

Water which had become so unfit that it could not be drunk by a beast: If it was in a vessel it is invalid, But if it was in the ground it is valid. If there fell into [the water], dye, or gum or sulphate of copper and its color changed, it is invalid. If a person did any work with it or soaked his bread in it, it is invalid. Shimon of Teman says: even if he intended to soak his bread in one water and it fell into another water the water is valid.

Yose ben Yochanan (a man) of Jerusalem used to say: Let thy house be wide open, and let the poor be members of thy household. Engage not in too much conversation with women. They said this with regard to one’s own wife, how much more [does the rule apply] with regard to another man’s wife. From here the Sages said: as long as a man engages in too much conversation with women, he causes evil to himself, he neglects the study of the Torah, and in the end he will inherit gehinnom.

A flow pouring [from one vessel to another] is clean, except [the flow] of honey of ziphim bees and honey batter. Bet Shammai say: also [the flow of] thick pottage of split beans, because it thickens up backwards.