R’ Eliezer says: One who weaves three threads at the beginning, or [adds] one thread to woven fabric, is liable. But the Sages say: Whether at the beginning or at the end, its amount is two threads.

One who sets two heddles of a home loom, [or] of a commercial loom; [and one who positions the warp reeds of] a sifter, a sieve, or a basket, is liable. One who sews two stitches, and one who tears in order to sew two stitches.

One who tears in his anger, or for his dead, and all who act destructively, are exempt. But one who destroys in order to repair, his [minimum] measure [for liability] is the same as for repairs.

The [minimum] measure [for liability] of one who whitens, combs, dyes, or spins, is double the width of a sit. And one who weaves two threads, his [minimum] measure [for liability] is a full sit.

R’ Yehudah says: One who traps a bird [by driving it] into a closet, or a deer into a house, is liable. But the Sages say: [One is liable for driving] a bird into a closet, or a deer into a house, a courtyard, or a vivarium. Rabban Shimon ben Gamliel says: Not all vivaria are alike. This is the rule: [If] it requires [further] trapping, one is exempt; [if] it does not require [further] trapping, one is liable.

If a deer entered a house and one locked [the door] in front of it, he is liable. If two [people] locked [the door], they are exempt. If one [person alone] could not lock [the door], and two locked it, they are [both] liable. R’ Shimon, however, exempts [them].

If one [person] sat in the doorway but did not [fully] block it, [and then] a second [person] sat down and blocked it, the second one is liable. [If] the first [person] sat in the doorway and blocked it [completely], then the second [person] came and sat down alongside him, even though the first [person] stood up and went away, the first [person] is liable and the second [person] is exempt. To what is this [case] analogous? To one who locks his house to safeguard it, and a deer is found to be guarded therein.