Separation of entities from a queue
  
    - Several applications, e.g.
      
	- leaving a queue after a maximal waiting time
	  (reneging)
 
	
	- changing to shorter queue
	  (jockeying)
 
      
     
    - In SimEvents
      
	- reneging is implemented
 
	
	- jockeying is not
 
      
     
    - Shuffle queue
      
	- jockey event leads to cyclic walk of queue
	  entities
 
	
	- last one gets separated