It's disgusting and shameful to take delight in the suffering of someone else, even your enemy. It's even worse to have inflicted that suffering yourself. Feeling a sense of justification from revenge is natural, we're human, we aren't perfect. But revenge is nothing to be promoted, nothing to be glorified, and nothing to be happy over.

Even when it's your enemy.

It takes a good person to overcome the feelings of hate and bitterness toward one's enemies, but I like to believe we all have the capability of doing so and that we all WANT to do so. Forgiveness is sometimes hard, but necessary.