@Override
	public void unInvoke()
	{
		super.unInvoke();
		if(canBeUninvoked())
		{
			if((theWall!=null)
			&&(invoker!=null)
			&&(theWall.owner()!=null)
			&&(theWall.owner() instanceof Room)
			&&(((Room)theWall.owner()).isContent(theWall)))
			{
				((Room)theWall.owner()).showHappens(CMMsg.MSG_OK_VISUAL,_("The wall of air dissipates."));
				final Item wall=theWall;
				theWall=null;
				wall.destroy();
			}
		}
	}