A living Darwin Award winner."
Oxymoron
Not an oxymoron. A Darwin Award winner must have removed his/her self from the gene pool through stupidity. This usually, but not always, entails death. Someone who survives his stupidity but is unable to reproduce as a result of said stupidity is still eligible.
P.S. Classic example: http://www.namibian.com.na/2004/July/national/0453617880.html