The most memorable people in life will be the friends who loved you even when you weren't very lovable.
The measure of a person is not on how well he prepares for everything to go right: but how gracefully he stands up and moves on when everything goes wrong.
If you think that the person fighting with you is of low level, don't fight back, maintain your dignity, you are not like him than how can you do what he is doing.
Nobody's perfect. Everyone makes mistakes. But some mistakes will teach you great lessons & make you a better person.