They're a hollow threat.
Extruder in Bryce is kinda odd. [/;-)
( Tahkcalb ω∞ for sigs, Thu 10 Jan 2008, 23:14, archived)

Hollow you say?
Perhaps they're trojan crabs....filled with an angry, crabby army!

*hides*
( LemonEntryMyDearWatson This time, Moriarty, the hand is on the other foot, Thu 10 Jan 2008, 23:16, archived)

Not bad idea.
Put more crabs coming out of the unwalled sides.
( Tahkcalb ω∞ for sigs, Thu 10 Jan 2008, 23:22, archived)