One of the things that makes apologizing so enjoyable is that people always believe me. Once I set fire to someone's couch and, even though I was doing them a huge favor (it had a floral print), things were tense until I said sorry. That's why it's childish not to say sorry. Next week I'm setting fire to their new couch because it's brown and I'll say sorry again. Maturity doesn't mean 'boring'.