Bava Kamma Chapter Two Mishnah Six
This mishnah deals with damages caused by a human being, a topic that was mentioned briefly in chapter one mishnah four. There we learned that a person was always considered to be muad, or an attested danger. This mishnah explains deals with that concept, that a human being is a muad.
Human beings are always an attested danger, whether the damage is caused inadvertently or deliberately, whether the person who caused the damage is awake or asleep.
If a man blinded his fellows eye or broke his utensils he must pay full damages.
A person who damages is always considered to be a muad, attested danger, and as such he will always pay full damages. The idea is that a person cannot claim that something was accidental and thereby exempt herself from culpability. For instance if I throw something heavy out my window and it hits someones car, I cannot claim that it was an accident and that I didnt mean to do it. Even if I go to sleep next to something that belongs to someone else, and in my sleep I roll over and break the item, I will always be obligated.
Questions for further thought:
Why should a human being always be a muad? Why not exempt her when she causes damages inadvertently?