According to Reuters.com, an Afghan suicide bomber accidentally blew himself and six other militants up on Thursday bidding them farewell to leave for his intended target.                    

There is also an article about this incident at the website Patriotroom.com.  The article at that website uses language that is a little more colorful than is used on this website, but if you would like to read the article, the link is above.  To me, this is the perfect end for a suicide bomber.