Quick find:

Slagathor [chat] rapier, sneak attack
Celorn [chat] Don't think you're still in stealth....
Slagathor [chat] Flanking
Slagathor [chat] I get sneak attack when flanking
Celorn [chat] ah.
Slagathor [chat] Hence why I'm outside the corner
Celorn [chat] was about to say, what imbecile doesn't notice a mad raging gnome
    that jumps on a rock and starts stabbing you.  Even orcs arent that bad.