פירוש על בבא קמא 18:5

Mishna, that which im responsible for its care- that I am made responsible to safeguard.

I am proper for its damage - It means to say, if the damge I provoked and Invited it to damage, I did not keep good watch over it; like this I found (rashi). Another interpretation, proper for the damage on me to right and fix its damage, it means, I am obligated to pay; these are the words from my teacher.