Blame your low self-esteem for gloating when someone slips and falls or spills coffee down his or her shirt, suggest scientists from Leiden University in the Netherlands.
http://ummid.com/news/2011/December/14.12.2011/low_self_esteem.htm
http://ummid.com/news/2011/December/14.12.2011/low_self_esteem.htm
