The knife is at the wrong angle...
Rotate it about 90 degrees anticlockwise and move it forward about a foot...
( Beastie is doing science with his arse, Fri 13 Jun 2008, 12:39, archived)

:D

( The Zombie Pirate of Dr. Blackwolf is sucking diesel on, Fri 13 Jun 2008, 12:41, archived)