The bull that damages [while] on the premises of the damagee —- how is that? [If] it gored, pushed, bit, lay down, or kicked, in a public domain, he pays half the damages; on the premises of the damagee —- R' Tarfon says: The full damages. The Sages, however, say: Half the damages.  R' Tarfon said to them: Seeing that where [the Torah] was lenient regarding shen and regel [viz.] in the public domain, that exemption be granted, it [nevertheless] dealt stringently regarding them in the premises of the damagee, that the full damages be paid —- where [the Torah] dealt stringently with keren [viz.] in the public domain, that half the damages be paid, is not right that we should deal stringently with it in the premises of the damagee, that the full damages be paid?  They said to him: It is enough for the inferred law to be [as strict] as that from which it is inferred: Just as in the public domain half the damages [must be paid], so [must] half the damages [be paid] in the premises of the damagee.  He said to them: I will not derive keren from keren; I will derive keren from regel: Seeing that where [the Torah] dealt leniently regarding shen and regel [viz.] in the public domain, it dealt stringently regarding keren —- where [the Torah] dealt stringently with shen and regel, [viz.] in the premises of the damagee, is it not right that we should deal stringently with keren?  They said to him: It is enough for the inferred law to be [as strict] as that from which it is inferred: Just as in the public domain half the damages [must be paid], so [must] half the damages [be paid] in the premises of the damagee.

Man is always muad, whether unintentionally or intentionally, whether awake or asleep. [If] he blinded another's eye or broke vessels, he pays the full damages.