Women, slaves, and minors are exempt from the succah. A minor who does not need his mother is obligated [to dwell] in the succah.  It once happened that the daughter-in-law of Shammai the Elder gave birth and he removed the plaster [roof] and placed s’chach above the bed for the child.

All the seven days a man must make his succah [his] permanent [abode] and his house [his] temporary [abode]. If it rained, when is it permissible to leave? When the porridge becomes spoiled.  They illustrated this with a parable: To what is this comparable? To a slave who came to pour a cup for his master, and he poured the jug at his face.