I know vendor npc without hailing does not change heading at all from what I can tell.  On peq, all vendors changed heading regardless of hailing or not and they don't change back to their original heading.  I often wondered if I can fix that for all vendor npc for my server without having to do a perl script for every vendor npc.  I have not gotten around to fooling with it yet. 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
	 |