I think this post on sarcasm is worth re-posting. I completely agree that sarcasm is an easy way out -- people (including myself) disguise sarcasm as humor, but it's usually laden with some other negative emotion like jealousy or anger. I have really been working to consciously choose my words in a way that are uplifting to those around me. I am very strong willed and could probably win just about any argument put in front of me, even when I'm wrong. Sometimes those character qualities can be used for good, but left unchecked could be very harmful to my relationships. Praise God that He offers me grace and guides me in this never ending process of sanctification.