There was a time when if someone did something mean to me, intentional or not, I would not only repay that evil, I would pay it forward. I would say "I can be your best friend or your worst enemy, I'll let you chose". What a horrible way to live. Hurting people hurt people.
My heart began to change. If someone did something mean to me, I would do two nice things for someone else, this could be a big thing or a small thing, like paying for the coffee for the person behind me. I thought I didn't want evil to be in the balance. Now it's 3 times. 3 nice things if someone does something mean.
However, today, I asked someone to help me with something... and she was a witch... and I even printed out the email... so I wouldn't forget. And for a moment I thought "wait until next time she asks me for something, she'll see her email". And then I went to lunch began to breathe and thought "First, that's no way to live, Second, they'll know we are Christians by our love" and I simply remembered a bible verse that was Jessica Burton's favorite from Sunday school Romans 12:21 Do not be overcome by evil, but overcome evil with good. And so I took down the email.
The Word of God never fails.