Format:
bstab <character>
backstab <character>

Backstab is a thief skill where you sneak up on your opponant and stab them 
in the back with a dagger or other piercing weapon. Backstab carries a three
round lag, and is not totally effective on mobs that are injured.

Dexterity will help you to make your backstab more often, and low dexterity
can hinder your backstab considerably.