@Override
	public boolean okMessage(final Environmental myHost, final CMMsg msg)
	{
		if(!(affected instanceof MOB))
			return true;

		final MOB mob=(MOB)affected;

		// when this spell is on a MOBs Affected list,
		// it should consistantly prevent the mob
		// from trying to do ANYTHING except sleep
		if(msg.amISource(mob))
		{
			if((msg.sourceMinor()==CMMsg.TYP_ADVANCE)
			||(msg.sourceMinor()==CMMsg.TYP_RETREAT)
			||(msg.sourceMinor()==CMMsg.TYP_LEAVE)
			||(msg.sourceMinor()==CMMsg.TYP_ENTER)
			||(msg.sourceMinor()==CMMsg.TYP_RETREAT))
			{
				mob.tell(_("You can't seem to go anywhere!"));
				return false;
			}
		}
		return super.okMessage(myHost,msg);
	}