@Override
	public Set<MOB> getAllFightingAgainst(final MOB mob, Set<MOB> set)
	{
		if(set == null)
			set=new HashSet<MOB>(1);
		final Room R=mob.location();
		if(R==null)
			return set;
		for(Enumeration<MOB> m=R.inhabitants();m.hasMoreElements();)
		{
			final MOB M=m.nextElement();
			if((M!=null)&&(M.getVictim()==mob)&&(M!=mob))
				set.add(M);
		}
		return set;
	}